Very good !
Pretty hard in later levels
One of the best puzzle games I've ever played. Seriously. It's really good.
It's a lot improved over the DS game and a lot of fun, with plenty of content. The biggest issue I've run into that I'd like to see fixed is that once you gain a certain amount of skill you can essentially keep combos running forever, but that's pretty much only going to become an issue if you go completionist on the game like I did.
Cool... sounds good. I'll grab it when it gets discounted in the next couple weeks.