I used them several times in the past and don't recall any issues, I always considered them one of the better pumps in their price range.

I have an old Sedra 9000 that just keeps going and going. And just recently bought a Sedra 20000 that really puts out a lot of flow, way more than a Mag 18 that it replaced.

Thanks for all the replies. It sounds like people have had mixed experiences, as I expected, but that they are at least decent. I guess I'll have to look at a couple others including the Aqua Medic and see which seems best. So many decisions.