Hi there,
I am useless at figuring out which filter to use on what size tank and aren't sure what a 91L tank is size-wise. If what you are using works, stick with it. Aquaclears are easy to set up, easy to see when they need cleaning, and easy to clean - unlike many of the canister filters. If you think yours may not be big enough, get a bigger Aquaclear.
I have an Aquaclear 500, Fluval 505 and Eheim 2229 wet/dry. The only one that has given no trouble whatsoever, despite being several years old, is the Aquaclear.
I do not know much about the brand you are looking at but having heard many talk about different filters over the years, it seems it is a case of 'you get what you pay for'. The cheaper ones use cheaper plastic and break more easily or readily than the others.