Yeah, I bought the Hornady Ultra Sonic Case Cleaner and it works as advertised.
It takes a little fiddling with, as it will only run for 480 seconds at a time. I find it takes several cycles to get cases clean.
I also found, to my surprise, that I needed to move the cases around in the liquid a time or two to actually get all the cases clean on the inside.
I am quite surprised when I dump the used liquid out how darned dirty it gets, it REALLY gets all the powder residue and such off the cases.
However, if you are used to tumbling your cases you may be dissapointed. This item will clean them for sure, but it will NOT polish them. The cases do not come out all nice and bright like tumbling them in some media.