I finished this today and I'm pretty disappointed. I completed it 100% in around four or five hours. Most Kirby games are short, sure, but the real kicker is the disappointing ability combinations. I was expecting something like the N64 game where you could put together any two abilities and get a new one, but instead you're just able to make some elemental swords and wheels or whatever. I think there are only like six total combinations, and they're all pretty generic. If you combine two abilities in your stomach that aren't a "recipe", you just get a random ability.
I also thought it was effortlessly easy, and it was annoying having to keep my stylus in between my fingers while I played so I could select new abilities. My finger wasn't all that accurate. It would just sort of drag the bubbles around a bit. Add in Canvas Curse to the mix and, well.. it's just disappointing.
So yeah, didn't like this one much. Felt like a step back for the series.