Wow! Very nice Drew!!!
Dwight, I have found Walters Cornerstone kits to be of excellent quality, and highly reccommend them. In addition to the detail that has been mentioned, another major plus is that all the parts always fit together perfectly. Believe me, this is a major factor in your enjoyment of putting a model together. Also, the instuctions are very clear and all parts are numbered right on the sprue. They have a great range of stuctures as well.
Other kits I like are DPM (Design Preservation Models) for city stores, which have some really nice, authentic architectural details.
Have also built Rix Products Smalltown USA kits when I need a lot of storefronts in a hurry. They're a lot cheaper, and because of that the backs need some work, as the bricks are not mitered corners, but rather butt joint at the back.
Also, City Classics make some nice taller buildings that I've used several times. Did a kitbash of a factory from their Smallman St. Warehouse add-on kit. Had a lot of filing to do to true up the sides on that one. Still like it though.
Val