Nice gameplay.
I don't understand why there is so many people complaining about just using the mouse. I think this is the perfect embodiment of a fun, well made casual flash game you can play at work during a short break.
The controls are excellent, it's very fluent and easy to get a grip of. It might be easy, but I don't mind, we can't have 100% hard games, that wouldn't be very fun at all.
However... Within a certain time frame the gameplay gets a bit repetitive, and there's little replay value (which I don't really see as a concern), so there's definite more ups than downs on this game.
Overall, really fun to play for a short time, not something that's going to occupy you for hours.