I watched this because of the main couple. However, I believe their storyline was not satisfying. Their story is subordinated to an insisting ethical quest, which makes it feel like an otherwise more fresh and meaningful love story was bent into forty-something episodes of moral lecturing. Xiao Qing and Shu Che do justice to the the clearly educational intention of the storyline, but that does not make their characters particularly memorable. Whenever there was real romance between the two, it comes after many episodes of anticipation (as usual), but in the meantime I'm sure viewers crave more entertainment and thrill. The rest of the characters were a bit lackluster at their turn as well.
The OST was OK for me: I added it to my Spotify playlist mainly because of the girl's voice; pretty impressive vocal skill (saw her on Chinese talent shows too). Overall, I don't regret watching it since I'm a fan of TT and LJ, but I certainly expected a story where love was done more justice.