I think that the folks who sit on this blog all day to complain about the toxic plumes at Columbus Square should go get a life. I think that Columbus Square has some very nice homes in a very quiet neighborhood. I've been there and know how quiet it is. As for the homeless shelter, I have never seen any transient wandering around the area.
However, I do think Columbus Square is a crappy location. It's a nice little neighborhood in the midst of a barren base. It's not within walking distance to anything of interest. I do feel bad for the residents who bought there - unless they're the types who simply come home each day after work and lock themselves in their home. The area surrounded by Redhill, Edinger, Kensington, and Valencia has nothing but those homes.
There should definitely be a significant discount for the location disparity at Columbus Square. On the other hand, I still think Columbus Grove is ideal.