I get frustrated with Dwarf Fortress... it's too complicated for me and I'm impatient.
My major problem with the worlds it creates (however realistic) is very obvious in that map there. I don't like massive landmasses being joined together like that. It's just an aesthetics thing for me. Individually, though, all of those landmasses would look brilliant. Through editing, you can fix it and remove them from each other, but Dwarf Fortress should know better!
Brilliant game is brilliant, though. I just wish I had the patience to learn it.