Well the first ending was the love ending for Felix and Sophie and this is the one for Zack and Sophie. Although I haven't played it yet but from what they say around here it gives me that feeling.
Personally, it was perfect. Seeing only one ending doesn't give you the full picture but with both povs it was a pleasure to read and think about the different tiny details. Now I'm curious what we'll get with the third and fourth one. I'm not a huge fan of group content but it depends on who will be involved.