It's entertaining and addictive, but...
... not anything new really. It's a bit like a cross between Indestructotank and Toss the Turtle, and even the concept of Toss the Turtle wasn't exactly shiny new. And it takes ages to get enough of the power ups to actually have any chance of getting the achievements. And then there's the fact that there are bonuses you're forced to pay real money for? Surely this is a huge miscalculation on the game designer's part, forgetting that the vast majority of the target audience is under 14, and so has no access to monetary funds online, and I doubt any sane parent would fork out money for something like this.
But despite all that, it's still an amusing game, and a good way for a bored person to be a little less bored.