Hm... looks very nice, but (sorry, there's a but
) the r_speeds are very high and the map lags much for me.
Did you run a final compile with full vis?
I could also find two holes in the structure you should fix.
This one is only for one side.
This one is for both sides.
It could also be a problem that there's a little space between the sky and the buildings in the mid area. If this is the reason for the high r_speeds, you could change the buildings a little bit or add hint brushes that the compiler splits the map more optimal.
Map is online @ [OTB] Beta!
EDIT:
Some more holes in the structure (both sides).