This is now one of my favourite maps. I absolutely love it.
It's got a quite unique and fresh look. I saw some props with draw distances that were ridiculous, though, but I can't remember where.
I'm getting quite a lot of slowdown in some areas, like the BLU spawn. Sure, I live on the other side of the world, but I only had 150 ping, which I'm usually able to handle fine, so it's not my connection.
BLU had a hard time getting past point 2. In that area, RED is practically above them all the time, so they get all the height advantage, plus some almost-impossible-to-kill Sentry locations. Even when playing Spy, I had a hard time even getting to most of RED's defenses, since the only way up there was to go past the whole thing, up a staircase and past RED's spawn - at which point I usually had no cloak left, and no ammo to refill. I thought the rest flowed fine, though, even if things tended to slow down remarably near the end again.
My biggest gripe is the large absence of ammo packs, at least where it would make sense for a Spy to travel through (I noticed that to get most ammo packs as a Spy, I had to go to them, I rarely picked up any as I went along, which I think is how it should be), or where it would make sense for an Engineer to build. As Spy, I had a hard time crossing the enemy's frontlines because of this. I saw ONE large ammo pack - I really think there should be more. I guess the health distribution is ok, but you shouldn't exactly lower the number, so to speak.
EDIT: Added some more info, read again if you read it just after I posted.