I just played 0.1.3 and went back to try 0.7.5.5 for more content but was surprised at how different it is.
My feedback would be that I think the backstory of Vespera in 0.7.5.5 was delivered much more clearly and the convent already being established makes much more sense than starting a convent on the word of 2 strangers as well as making the characters feel more like nuns instead of just people wearing nun habits.
I do much prefer the MC and Momo from the remake as they are less selfish and more sympathetic and the UI and sex scenes win no contest.