Pros:

all weapons 
nice fort for survival
walls are good for hunter training

Cons:

only available through console commands
not enough melee weapons
during crescendo events zombies spawn but most of them dont go to you
tanks can be hard to find when you spawn them ( make them spawn directly around the area wwhere the witch spawns)
not enough special infected during crescendo events

Conclusion:

its pretty good just need to make some minor tweaks to the infected and where everything spawns