"When trying to decide on a canister filter for my 55-gallon aquarium, I saw a lot of conflicting reviews and information. I finally decided on the Rena Filstar XP2, and I couldn't be happier. It's reliable, it never makes a sound, and it has GREAT water-polishing capabilities, which is a MUST with my lime-laden water.
Even if I don't clean it as often as I should, the filter media does a wonderful job, and disassembly for maintenance is a breeze. It's the only thing I need to create current in my freshwater tank (although a saltwater would still require powerheads), and it has a very small footprint.
The only issue I experienced was a defective hose clamp out-of-the-box, so a few spares might be good to have on-hand. Other than that, the only complaint I can think of is that the Bio-Chem Stars were not included in the kit.
All in all, this is a GREAT filter with easy assembly and maintenance, and I'd definitely recommend it to anyone seeking a canister."