I've personally use a
Rigidbot at home. I've used it on a few occasions at home for FRC related stuff. For example, i used it to create a simple radio mount before AndyMark released their version which was just mine, but better. It prints reasonably fast (~60-70 mm), and ever since I upgraded my extruder for about $200, it's not had any problems. I have the RigidBot 1, which was plagued with problems, but I know the Rigidbot 2, which is about the same price, is much better, and you shouldn't have to upgrade your extruder if you get one.