Well I finished Volume 15 today. Wow....Arima's past got intense. Really sad too.
You should really give it a chance again Sen.... Arima's not my favorite either, but Miyazawa should be enough to pull you in.
I watched the first volume of the anime and I didn't get the same feeling from the manga at ALL. Everything went to fastpaced it felt...they shoulda just sticked with the material. I like the opening theme though.