I usually feel the student/teacher type of manga is overdone and usually boring. However, the depth of the main character's stories were impressive compared to the many other manga I've read. They are flawed and damaged character's, which is rare to find in a manga (especially shoujo).
The artwork is well done compared to some of the manga out there. There isn't anything spectacular, but the artwork is smooth and not distracting other than the very attractive rival male characters (Teacher and Mamura).
While I did cheer for my OTP I knew it would never be, but it was still enjoyable to cheer for them. I won't go into detail due to possible spoilers.
Overall, it was enjoyable and a nice kind of different from most student/teacher manga.