I might be in the minority, but I thought the Isabella scene was a throwaway. It seemed to be there just so the peeps who need a sex scene wouldn't bitch too much.
Take that out and the game is still terrific, probably better, as it removes any moral ickiness to the MC and makes the ensuing romance of Melody sweeter.
Count me in also in the club that likes that the characters don't look like 14-year olds this time. I found DMD wonderfully engaging, but, yeesh, Elena, and especially Jennifer, looked like they were a lolipop away from grade school.
I don't mind slow burn tales and there seems to be a nice run on them recently (A Wife and Mother, Blooming Love, et al). There's a place for the slapdash sex games and one for these simmering relationship build-up games. I like some of each, especially when they stay true to their core concept.
So, hopefully, this continues to take its time, maintains the sweetness of Melody and doesn't create too many immoral dilemmas for the MC that DMD did/does. Multiple sexual temptations, no doubt, but leaving an option for that heart-achingly tender Melody path.