http://gmod.gamebanana.com/maps/174185 I played this map on another server (I forget which one) and everyone on the server really liked it.
We have quite a bit of these kinds of maps and they all seem pretty popular. +1 sounds like a good idea to add/replace this one.
Aesthetically the map looks fine, and I've always been a fan of the maps where you're miniature. However, one concern I do have is if the map doesn't have enough to it. It looks open, and by that I mean incredibly open. It doesn't look like there's enough areas for the Traitors to get away with killing people. From the images, it looks like regardless of where you are, as soon as someone shoots everyone will be able to see you.
This is actually a relatively easy map to get away with kills on as a traitor. It might not look it, but if this is the giant map I am thinking of, there is an attic to it and plenty of places to snipe from. Plus there is also areas of the map where one can easily kill someone on the ground and not be seen. It is actually much more enclosed than the pictures let on.
Huh, well if that's the case I have no problems with it! It's worth at the very least to test it I think +1