Thanks for the comment. And yes, the doors are not everyone's taste, but I was so tired of using the same old entry zones that ANY change seemed fine...
I was thinking of adding one entry zone that has a lift in the middle (2x2) and has only a crossroad on the lower level, limiting movement and room.
Anyway, thanks for tzhe feedback. I will post updates from time to time and will make sure I use more space on other Urban mapblocks.