Pros:

It's a hammer.
It's a hammer.
It's a hammer.
It's a hammer.
It's a hammer.

Cons:

It's a hammer.
It's a hammer.
It's a hammer.
It's a hammer.
It's a hammer.

Conclusion:

Who doesn't love hammers?

Pros:

This mod has 20% cooler textures than the original.
Consistently awesome as always.
There's a severe lack of good silenced SMG retextures out there - here's the cure.
Ponies.
Rainbow Dash.
It was made for me.

Cons:

Literally nothing. Nope, nothing, zilch, zero.

Conclusion:

A huge thank you for creating this, finally something I can use to replace the old silenced SMG. It's rare that someone you don't know will make you something for free, just like that because you requested it - and to have something made for me is really quite the honour. Of course, the fact this was made by my request aside, this is obviously another absolutely brillaint texture, that keeps with the consistent tone throughout Xolarinf's mods that has been of A+ grade quality throughout. Great job!

Pros:

Extremely good custom-made icons that're done to a very high standard of quality and also portray the survivors accurately.
A very nice a desirable replacement to the old stylised icons, a fresh new take that's quite welcome.
Eranthis's style is consistent throughout, and using this mod along with more of their custom art mods feels natural and the other pieces of custom artwork do not clash with this one.
Features the sort of 'encroaching shadow' around the borders of the icons like the originals, which serves to keep in tone with the themes of L4D.
I have a few mods that replace survivor icons with something else in order to more fitting for the mod's texture, and this mod does not seem to conflict - I retain the other mod's custom icons for the survivors while the survivors I haven't modded use Eranthis's icons, which ensures the best of both mods.
Especially good job with the L4D1 survivors.

Cons:

I feel Coach and Rochelle's icons look a little odd, although this could just be down to personal preference or how I perceive Eranthis's style.

Conclusion:

A fantastic replacement for the old icons which're all quite appealing to the eye and are undeniably extremely well done. Great work Eranthis, and thank you for uploading this and your other custom art mods, which're consistently of top-notch quality throughout.

Pros:

Texture looks fantastic without any sorts of noticeable issues.
Glows in the dark - which makes sense as it's an electronic screen.
Nurse Redheart is the perfect choice for health item related retextures - I've been using this along with the health kit mod as it just seems so appropriate for Redheart to be on them.
High quality textures provide a desirable alternative to the old texture, and this is certainly by all means a vast improvement (with added pony).

Cons:

Perhaps a lack of grit and weathering - although this doesn't neccessarily reduce the quality of the mod, it just doesn't help it fit within L4D's environment.

Conclusion:

Once again another brillaint retexture by Xolarinf - these mods never cease to impress me and are more than deserving of a download. I particularly like this defibrillator for having the perfect and most appropriate pony on it, which just seems to make it even better. As the description describes it, all of these things are provided at maximum quality, and from using it for a fair while ingame I have absolutely no complaints about technical issues or otherwise. An excellent mod.

Pros:

Access to all official mutations with a bunch of custom mutations included.
Custom mutations included are highly enjoyable, highlights are mutations such as Tankball which is consistently great fun.
Easily accessible on the menu screen.

Cons:

Some of the custom mutations are somewhat buggy and I've experienced several glitches while playing them, for example sometimes on Tankball the survivors randomly become invincible.

Conclusion:

For allowing players access to all mutations, this mod deserves a 10. However, basing my rating on the custom mutations which are generally more entertaining than the official ones, I'm rating it a 9.9 as the glitches within the custom mutations can become quite annoying. I would rate this a 9.5 if the official mutations weren't also included, although they are of course, so a 9.9 is in order - despite this seemingly negative conclusion, don't be fooled, this mod is absolutely excellent and is more than deserving of my 9.9 rating.

Pros:

Custom models for almost everything! Minecraft survivors, boomers become creepers, Minecraft melee weapons, etcetra. The models all seem to work fine and I had no issues fighting the Minecraftfied mobs as I would with normal zombies.
Decent size for a campaign, not overwhelmingly long and not pathetically short - essentially just right.
Intergrates Minecraft aesthetics such as portions where you must craft items and place them, this made the mod feel more like Minecraft which is undoubtedly what was intended.
Clever use of Minecraft graphics - e.g. when you use pills, the temporary health it restores are displayed with the icon used for food in Minecraft (which seemed appropriate seeing how this naturally drains over time in the game aswell, like temporary health in L4D does).
Classic styled finale that worked fine, along with a good amount of scripted events to boot that kept the campaign feeling fresh.
A bonus map, 'The Evolution of Minecraft', that provided a sweet little extra after completing the main campaign.

Cons:

Some inconsistencies such as times when you could break glass and when you couldn't became somewhat distracting, although is by no means a major issue.
Not all items are replaced by Minecraft skins, although seeing how it only stuck to graphics in the game without mods (modception), this is understandable.
It was a little too easy to accidentally shoot allies due to the size of the Minecraft skins, although this wasn't too much of a big deal.

Conclusion:

An extremely enjoyable campaign which brings the aesthetics and appearance of Minecraft to L4D2 flawlessly, providing a top-notch campaign along with it. Undeniably reccomendable to all L4D and Minecraft fans. The cons listed are only tiny gripes which won't effect your experience in any noticeable fashion - I had no technical difficulties with this map either, so great work everyone who worked on making this fantastic campaign.

Pros:

Huge attention to detail, plenty of eye-catching design choices with artistic use of flowing water, cobwebs etc
Challenging finale yet doable with the double dual tanks spawning
Complex and intricate level design, although it can become somewhat confusing at times
Custom guitar theme for safe rooms
Francis's entertaining quips throughout
A surprise event halfway through the campaign which I won't spoil, that surprised me and kept the old L4D formula fresh
Cluttered houses and buildings add to the realism of the campaign and makes it far more interesting to explore everything

Cons:

I went to the helipad when the seaplane was by the dock. My fault.

Conclusion:

A hugely well developed campaign, after checking out the bonus content on the website to see some of the behind-the-scenes details, it is clear that a huge amount of effort went into the making of I Hate Mountains 2. Most likely the best custom campaign I've played to date, with a huge amount to offer - an exciting and entertaining ride. 

Pros:

Easily the best mod ever made.

Cons:

This mod hasn't replaced every other mod on the site yet.

Conclusion:

Completely flawless and perfect. Incredible.

Pros:

Amazing attention to detail, large and impressive environment that fits well within L4D2.
A custom melee weapon (won't spoil it), with an awesome reskin for tanks (won't spoil that either).
Plenty of fun and tense situations, such as the original scenario where you had to shoot a gas can in order to get the boat to fill the gap in the bridge, it felt as if this was a real campaign designed by Valve.
Brilliant art design, the original grafitti is often humorous or expositional, and the loading screen is excellent.
New and unique music is often atmospheric and fitting for the campaign's setting, and the elevator song rendition of the L4D theme was particularly entertaining.

Cons:

I have no serious complaints with this campaign, it is an excellent custom campaign that I reccomend any L4D player tries.

Conclusion:

A truly fantastic campaign with everything you could want - as I said before, it's as if this were a campaign made by Valve themselves. Hugely enjoyable, I reccomend this to everyone.

Pros:

Brilliant environment details, unique and atmospheric setting.
Long and complex levels with a substantial and enjoyable difficulty level.
Varied scenarios, e.g. the cablecar.

Cons:

Barely any. Sometimes the level design can be a bit misleading but this personally isn't an issue for me.

Conclusion:

An absolutely amazing campaign, one of my favourites. Hope it's finished soon. I love the setting and think it was presented essentially perfectly, and it fits well within the theme already given by Left 4 Dead.