I love the presentation, and to a certain extent the gameplay, but the repetition is starting to bite at me a little. I was more forgiving with Angry Birds as there seemed to be more room for creative structures and watching those break and tumble was half the fun. ..for what it's worth, Siege Hero does it even better than AB.
I've played this alot since my last post and its a game I keep coming back to and play handfuls or more of levels at a time still. It can be quite challenging and recommend giving it a try while its free.