It's only a 5"x5"x5" area, and the 3d model is pretty detailed. Nothing will be perfect inside an area that small, and to get this for free, I'm not complaining.

Haha yeah, the model itself looks great, just not the print quality. But hey if it was free definitely can't complain! Maybe try making one with more supports, like a roll cage kinda, so you could sand it. Smooth that baby out and paint it you got a quality model!

I'd say it depends how simple something is. My Marathon keychain was fairly simple compared to the complex hot rod.

Yop for sure, but if done right you should be able to make something strong and good looking.