i have the same filter on my 26g for now and its a pretty good filter, i've never had an issue with the spray bar being clogged and the return has a kick otu type of feature that returns the water across the surface of the water to increase surcafe aggitation for better gas exchange.
the only problem i've had with it is the impeller on mine lost 2 blades, i don't know if i broke them off cleaning or if it just broke off on its own, but i still haven't replaced it and it seems to still be flowign at the same rate