I'm about 20 minutes into CinePuri at the moment, and... honestly, I have to say, if I hadn't seen the series, I'd probably be confused, and because I have seen the series, the differences bother me. I understand why they made the changes, but they bother me nonetheless.
Stupidly enough, the biggest change that bothers me is the hair. I have yet to figure out which one is Oishi because they left his hair with a normal cut, and Atobe's brown hair is really very bothersome. Movie quality, however, has led me to the deduction that Inui is hot. Also, it was comforting to see the same Tezuka from Imperial Match.... and to know that he's a lovely singer! XD;;
Honestly, to me, it feels rushed. Like 20 episodes have happened in 20 minutes, and I'm not thrilled about that fact. And that Hyoutei has appeared with neither hide nor hair of Fudomine, Yamabuki, or St. Rudolph's... Not that I'd ever complain about Hyoutei's presence, but... like wtf.
Expect more ranting later.