This quite used centrifuge does work. It is a bit noisy but it is ok when I put a plywood box over it. It is very suitable for our need to do a quick and dirty feasibility study of a particular process. If it lasts for a year, it will have paid for itself. I think it will last ... fingers crossed.
The Eppendorf microcentrifuges are top quality. This one runs quietly and seems to work great. There was some cosmetic dings to the outside, but these don't affect performance. I've learned that this centrifuge is very sensitive to balance, so be sure to have a closely matched balance tube when spinning. This particular unit was delivered as advertised, at a price comparable to units of much lower quality.