I too am using a pengiun biowheel, and the 330 is great with the dual output. personally i don't have complaints, and it works a lot better than my whisper ever did. anything floating in the water that even gets remotely close to the intake tube is sucked right up. things would float right past my whisper. and also the pengiun had enough room for me to stick the new carbon filter, and my old one from my whisper in there, to keep all the good bacteria. and the biowheel keeps it all safe anytime you need to switch out the bacteria or anything like that.
hope that helps
edit: i wanted to add that even with the intake being much more powerful than my whisper, i have never had any problems with it being TOO powerful. granted i don't have any small fish. my smallest being a 2.5" (approx) puffer. but he isn't the best swimmer. haha. and he's never been unintentially stuck to the filter. i say unintentially because he actually seems to like randomly rubbing up and down on it. i catch him doing it once a week or so.