i have an eheim 2213, and it has worked better than i thought it would. It is completely silent, doesnt make a sound. I think it is just too small for my 60 gallon, even though its rated for 65 gallons.
i would recommend using a sump though, even though the eheim works well, i would much rather have a sump knowing what i do now about reef tanks.
About the cleaning, you just close the intake line, let it run for 3 seconds to drain water, then turn off filter, then close outgoing line. the media is in a seperate canister and you just remove it and change the media, VERY EASY!!!