Pros:

Unique
LOVE the colors and style
Doesn't just hand you all the good items at spawn time

Cons:

NPCs have trouble handling certain areas (infrequently)

Conclusion:

I'm glad I got this to work! Double-clicking the vpk didn't work for this one but putting it in the addons folder did. Not sure why, just happy I get to play it now. You put a lot of work into this and it shows. Grats on doing something unlike anything else on this site. ^_^

Pros:

Detailed
Accurate
Great finale - worked well with the concept of the level
You accomplished EXACTLY what was intended ^_^

Cons:

Skins on the ride could have been smoother (i'm nitpicking)
Could use more zombies during the ride (personal opinion)

Conclusion:

You honestly managed to combine my chlidhood with zombies in a way I never thought possible. This isn't for people who just want the instant gratification of killing hordes of zombies. This IS for people who can appreciate a well-designed tribute to the Indiana Jones ride from start to finish, but like killing zombies TOO.

I would have loved to have zombies pestering us ON the ride, too, but I understand wanting people to experience all of the detail you put into recreating this ride so perfectly.

Thanks for making this map. You make me happy.

Pros:

Functional map
Movement through the campaign made sense/felt natural

Cons:

Felt like I was playing a "greatest hits of l4d".
 I was bored.

Conclusion:

You did a good job but for your next one I'd love to see something that feels new and not like a rehash of current levels.

The reason everyone is saying this could be a map "right out of Valve's team" is because all of the content WAS out of Valve. The skill you demonstrated in making this map WORK means you can definitely use your own ideas now.