You have also got my attention by saying it's not a fast paced manga and the beginnings are a bit slow and introspective. I love that, I love getting 'inside' the character's heads.
A big drawback which would totally make me pull back would be the large display of characters since it confuses me often and makes me seriously consider writing them down with a linking sketch. lol
Other than that, I will note this down and try to fix my sked and find myself some time to read it after exams. Could you please tell me where I can read it online?