The canisters are not hard to maintain at all. In fact, I do less maintenance on our canisters than on the hob
on my 10 gal
tank. I have some pics of my Cascade's that I could send you. Basically you shut off all of the water that runs from the tank to the filter and filter to tank, unhook the tubes, pull away the unit, clean it or do whatever you have to do, hook back up the tubes, open the valves, turn back on. Very simple.
The cascade's are VERY quiet. You won't even know that you have a filter running. The thing with hob
's is that you can hear them. For 29+ tanks, I'd highly recommend a canister. They keep my tank crystal clear.