Just played it. Here's my notes:
A. If the demo gets his rollout right he can lay down far too much spam (i was able to prepare 3 stickies) before the enemy team gets there (as in, the medic etc)
B. The sniper sightline on last is too big
C. There's no actual choke to hold on second. The rock is just splitting it and making it hard to hold/maintain
D. Spawn times are far too fast
E. you should add a few hiding spots (like lamp in gully)