I really enjoyed watching it though the events happened a bit too fast for a single movie. They could have split it into two or three parts to slow things down, because I wish it had gone a little bit more in detail. Giving the audience more room to breath, and such.
Otherwise I'd recommend it since the idea behind was very unique and not exactly like ordinary shoujo(?) movies.
Of course, in that genre, stereotypes and a higher level of cheesiness is inevitable, still it could make some of you cringe. If you're not into that, its not the right movie for you.