A monkey can become pro in Sketchup lol.
have you ever even used sketchup? Getting the hang of Sketchup takes around the same amount of time and effort as getting the hang of other programs. (maybe not blender lol; that UI is ridiculous)
what is up with people and calling GSU crap. It may lack in some features, but it makes up with other features which other programs don't have. GSU is a very capable modeling program. I've used MS3D and Wings3D, and I prefer GSU over both of them.
tl;dr: learn how to loving use GSU before you insult it