The more of these I see, the less I like the idea of creating full-blown modular sized buildings out of the set. I think the design plays better into a half-modular play style. I was excited to see them (almost) continue with the theme in the toy store 31036. In reality they cut corners and botched the toy store set so much that it is an insult to the 31026 set.
other sets I've been looking at that might fit into the same scale though, town square, heartlake mall, daily bugle, maybe avengers tower. I just think that trying to scale it up just doesn't fit the design, and eliminates some of the play functions. I have to admit that last one looks decent though.