I have to say the breakup of Ae and Pete ruined this for me. It might have been easier to accept if we didn't have to see Ae crying every other scene. I had to start fast forwarding through those because 1. it was depressing and 2. I was there to see Tin and Can. But guess what? They changed their story too. There was a weird recap with changes and nothing was as good as it had been in season 1. Yep.
To sum up, they really should have kept Ae's scenes to a bare minimum. No one wants to love season 1 only to find their ship has broken up miserably in season 2 with one character crying his eyes out ALL THE TIME. I love Tin and Can and the characters deserved so much more out of season 2. It didn't completely suck, but almost.