I've been using Geomorphs for Nightwick Abbey since the the first time I ran it in its current form. Since that time, one thing has been a constant thorn in my side: those damn geomorphs are hard to describe to players! I love how easy and quick they make mapping interesting dungeon levels with lots of connections and nonlinear stuff, but they make rooms really hard to get across without looking at the actual geomorph.
Sometimes this isn't a problem, especially when I have a mat handy, but on G+ it's a nightmare.
So I guess what I'm saying is make some more ones that have square rooms.