[quote name='AwRy108']I played the PS3 version a bit, and I was thinking the same thing: playing this in co-op would be pretty terrible unless you're just trying to run through the levels.[/QUOTE]
Having actually played it with someone who isn't that great at video games, I disagree with you guys assuming it would have been worse. This doesn't mean it would have worked for you, but I'm just chiming in to say that I found the co-op to work very well and I actually have more trouble coordinating things on my own. I was able to collect more efficiently, too.
Ultimately it depends on how you play and how they play, of course, much like the functionality of New Super Mario Bros. Wii.