Oh yeah. If you just want to make lots of simple buildings real fast, then there probably isn't a better program than Sketchup. It's great!

MoI is really designed for detailed work and if you needed to do that kind of stuff, then you'd probably be posting in the Sketchup forum saying - "Has anybody seen MoI? I like Sketchup, but I'm seeing a bunch of features that make MoI super functional".

;)