Ah, the OVAs and the main series were pretty good in my opinion, the characters were fairly well developed and stayed within their themes quite well, however the main character was extremely boring, nothing special in the way of protagonists. I've seen her character SO many times, so that was a little disappointing. The art style isn't quite the way that I like it, but considering it is from around 2007 that is to be expected. One thing that I absolutely could not stand was (SPOILER ALERT) the fact that EVERY SINGLE GUY DIED. Literally, all of them except Shirunai and Kyuuju. T^T Overall though,it was decent. I mean, I liked it enough to watch all the episodes (even the ones from the main series, first and second season) all in one day, lol.