This Angry Birds game is fantastic. The levels are beautifully rendered, the new birds are cute. This game is well optimized and a great new spin on the design of the original. The new game play will re-introduce even veteran slingshots to the concept of gravity vs vacuum.
But there are some negatives for me. Firstly the camera is annoying and frequently moves just as your lining up a shot. Secondly the game is too short and too easy - OK, it's not easy to get three stars on every map, but it is on most of them. Thirdly, there isn't that much variety in your arsenal of birds. Hopefully some free DLC will be available soon, but for now, it might not be worth paying for on PC and stick to the mobile devices.