"Pretty average for the price you pay.
If you use the blue Bio-Falls gimmick, it really cuts down on the cleaning power because there is hardly any flow coming out of the powerhead. Which is pointless, because I got this to CLEAN my tank. The Bio-Falls feature does make the watery noise less, though. Glad that part is removable, or it would render the filter gutless. The filter itself seems fairly quiet, too. Anyway, seems to work ok."