I have one. It's a great box, very stable, very good for basic use. Mine has a 68LC040 processor upgrade card though, so I don't know the performance without it, but with it it's great! I use it for playing Crystal Quest It has System 7.1 and the boot time is long but responsiveness is great.

Can't beat the price I got it for either. The guy I got it from booted it before he sold it to me and found out it had a problem, and gave it to me for free. I solved the problem(no money involved, no new parts) and now it's working perfect.

Make sure to put Crystal Quest on there!