I won't comment on if it is a good cs map or bad because I don't play cs .. so I'll just give you some visual comments =]
Overall it looks neat, smooth walls, nice detailing, cubemaps... The thing that bugs me is just the repetitiveness of the tiles. Even the ceiling has tiles. The lamps you have indoors are nice. You should add some benches and junk inside.
Looks sweet. I was never a fan of fy_ maps as they were just boring. But still looks like a good map.
By the way, in my opinion, I find it kinda childish to write your name on a board saying you made it. Something I would expect on a map which was a remake of assault.