Pros:

- Unique concept, good execution
- Mostly intuitive mechanics
- Difficult, but well balanced
- No stability issues encountered

Cons:

- Singleplayer only
- Performance issues (see map description)

Conclusion:

From the screenshots and stuff I was a little worried this map would be overly chaotic and try to shove too much stuff in your face, but I was pleasantly surprised. It manages to be fairly easy to catch on to and all the new mechanics are pretty intuitive (shoot vehicles, vehicles explode, simple enough).

There are two big things holding this map back from being totally awesome. The first is the lack of multiplayer, hopefully we'll see a multiplayer release in the future. The second is an inherent issue with maps like this, in that it tends to be more of a shooting gallery than conventional survival maps, and you don't get much opportunity to win or lose based on intelligent positioning and tactics.

Bottom line: it's a hell of an ambitious map that accomplishes what it sets out to do. Lots of fun if you don't mind playing singleplayer only, and challenging enough to make you work for a win without feeling like any horribly unbalanced mechanics are making you win/lose. Well worth a download and a play if for no other reason than to try something completely different.

Note: at the time I played this map, my performance was atrocious. Changing my effects detail setting from high to medium as suggested more than tripled my framerate and made the map perfectly playable. See the map description to determine whether this is still relevant.

Pros:

Tons of crazy new stuff
Very nice fence-building mechanic
Pretty tough, and lots of different ways to play

Cons:

Some minor bugs still
Takes awhile to learn what everything does

Conclusion:

Wow, this is definitely a unique one. There's a ridiculous amount of totally new content stuff here, so I'll just gloss over my favorite parts. 

First, the fence-building mechanic is really really nice. You don't place each bit individually, you just place the first piece of fence, then buy extensions which you can rotate at 45 degree angles to get what you want, and buy extensions off of those. Incredibly convenient, although the "buy extension" button a little close to the rotation buttons so you might accidentally buy an extension sometimes.

All the vehicles you buy have neat upgrades, which add functionality and visually upgrade the armor, and it looks awesome.

Auto-turrets are really handy and easy to use, since you can rotate them even after deploying.

The biggest issue I had is that there's just so much new stuff it's a bit overwhelming. It takes a few plays through to get a good idea of what everything does. Definitely read the tutorial board at the spawn point! Amazingly stable map for how much crazy stuff is going on.

This map is best played with 3-4 humans, since bot AI obviously can't interact with this kind of custom content.