The young ladies watching with me last night, including my niece, seemed to fully embrace the protagonist and were able to put themselves in Simon's shoes. They were pretty vocal expressing their giddiness, especially in the last scene. Also, I thought that last scene was pretty revolutionary. I'm old enough to remember watching similar same-sex scenes in the past and confronted with others' nervous snickerings.
The dad's reaction to his son's homosexuality was touching here as well, and I heard sniffles around the theatre while it was playing out. I just thought it was done more effectively in the TV show Glee.
All in all, I liked it. And I plan to watch it again, since I vote with my dollars, and my Movie Pass makes it a lot easier to do this.