I've had two ehiems, they work great. I lost both due to human error, the person watching my tank knocked them in the water each time
That tends to fry them.
I did not want to spend the money on them anymore, I just got two aquachefs. http://www.drsfostersmith.com/Produ...ge-_-Feeders&ref=3969&subref=AA&N=2004+112973
they look pretty good, maybe not as well built as the ehiems, but they look to do the job just as well.