I love the idea. It mostly kept me watching, a couple of times I did look away from the movie (as when seeing VERY amazing movies I'm usually mesmerized from the beginning to the end), but overall I was staring excitedly at the screen and laughing :D
Thought for me, a good movie is one what will make you laugh and cry. Easy A, made me laugh and ALMOST.. cry :)
The acting, in my opinion, is well done and believable. Good Luck to the whole crew, they did a good job.