Squeak Squad delivered on exactly what you should expect it to deliver on: being a Kirby game. There's nothing wrong with that, but there also isn't anything too great about it. While I've always been a fan of the Kirby franchise, the platformers like Adventure, Dreamland, Squeak Squad, etc., are all pretty much the same. There are some hidden things, you get some powers, you float around, and the only real variation in play is what power you choose to destroy your enemies with.
Don't get me wrong, the powers in this game are cool, there's a nice selection of new and old powers that can make slaughtering your foes moderately interesting, but when all is said and done, it's only that: moderately interesting. If you're looking for another Kirby game very similar to the others you've played, then get Squeak Squad because you won't regret it. But if you are looking for some innovation, you won't find it here except for in the touch screen functionality, which really doesn't add much to the game other than the ability to store up powers in case you lose the one you have.
Overall, a good, fun game, but that was expected, and it doesn't bring much to the table that we haven't seen before.