Then you havent used an aquaclear 110
I used to run 2 of those badboys on a 75g that housed big messy cichlids such as oscars. Awesome turnover, grunty, good capacity and a breeze to maintain, extendable intakes for deep tanks too.
Better options than most very average canisters IMO (such as sunsuns, aquaones etc..) Good surface movement enables you to inject large amounts of Co2 safely aswell.
They make great refugiums when modded too , and if the flow is too great, just buy a spare impellor and cut a blade or two off
Small canisters such as the Eheim 2213 or 2215 are excellent and simple but i wouldn't run one of anything near what they say they are rated to - a 2213 is brilliant on say a 40-80L tank even though it says its rated to nearly 250L... You want good water movement all around the tank to distribute nutrients and co2 (and oxygen) evenly.