Hi, thanks for the reply👍.It depends on your scenario... I think a prefilter is the way to go these days. It's a game changer in terms of convenience and I believe every modern canister should have a prefilter. Like a power steering in a car, or a touchscreen on your phone, I would not buy a new product without it.
Yes, they do seam nice but, I may have to go with foam on the intake and crack the canister periodically as I am not prepared to deal with the gurgling issues with Oase just to get the easy to clean pre-filter.