Pros:

- freaking addictive!
- the speed
- the fine line between hauling a** and dying
- the warp support
- crunching your neck in the bottom warp area after finishing the shorter circuit (touchdown!)
- challenge spots like the "cylinder of death"
- a few new tricks you can pull once you get the hang of it

Cons:

- no auto-respawn of players in co-op
- begging for more circuits, more speed!!!
- unlimited adrenalines would rule

Conclusion:

Looooove this map!!  After about 6 hours in the middle of the night with a few friends, I was getting the hang of building up serious speed.  I was able to launch myself from one circuit to another when I wasn't launching out into the ether on accident, which made for great new challenges.  In co-op mode with more than one survivor, dying meant voting to restart and waiting, so an auto-respawn would *really* help.  I would love love love love love to see more, bigger, faster circuits too.  Circuits that when you get good enough let you launch to other circuits would be awesome.  Unlimited adrenaline would be great too.

Pros:

- Awesome balance of L4D/Minecraft utility in the map design.
- The crafting events were awesome.
- Awesome survivor models.
- Awesome infected models!
- Awesome melee models!!
- Snow/rain: awesome.
- Awesome Minecraft music.
- Water and cobweb slowdown...awesome.
- Switch-based doors, breakable doors and glass, chests you can open: awesome.
- Light sources for lava, torches, fire: awesome.
- Being able to walk/swim through the awesome water.
- Floating zombies in the awesome large water fountain.
- Awesome The End level.
- Awesome Youtube celeb and site references.
- Awesome Ricker beard.
- Last chapter finale: aaaawesome.
- Witchicken: only the best f***ing thing ever.

Cons:

The only cons I have are really just minor things, the map is so polished at this point.

- I'd tone down the rain/snow particles just a hair.
- I kept wanting to dig at least select blocks with the pickaxe...that and building select blocks as a secret area mechanic would be awesome.
- There are a few places I was dying to get to but couldn't, like the hot air balloon!
- Some older systems seem to struggle a little, not sure if there's an easy worth-it way to simplify some of the geometries.
- Regular infected get stuck in a few tight places.
- The lava makes for some *harsh* pain in places--like getting smoked into the lava wall for instakill while working the piston, and places where you can fall into lava and can't get out (it'd be good to have a step-up so you can get out of those).

Conclusion:

The new cut of the map is incredible.  Going through it fresh, it's easy to see that everything was thought of, plus a lot of nice extras.  That's usually something only full-time devs do.  So yeah, this map is pro level.  Can't say enough good things about it.