This was recommended to me by many, many people and I'm so glad I finally picked it up. I didn't have any trouble getting into it, although was I did I was slightly bored. So I read a few other books and came back to it when I felt interested again; which worked out VERY well, obviously.
I loved all kinds of things I don't even know where to start.
Okay, one thing I really loved was that Albertalli doesn't describe black people as food. You know, like, "mocha" or "caramel". Her character, Abby, is just described as black. I also loved how much Simon's character grows throughout the course of the novel. He even realizes at one point that he needs to stop assuming that people are automatically white and straight.
And yeah, it was great. Go read it.