Book number 6 this year was not part of a trilogy (that I know of). I finally got around to reading Stargirl. I was never a huge fan of Jerry Spinelli when I was younger, and I'm still not. He's certainly not terrible, but there was no...spark.
Stargirl is a very easy, if predictable, read. I like her character, she's different, interesting. Leo I find a little flat. That said, I really like the perspective of the narration, it's very much like The Virgin Suicides, and I think it makes the book better than it would have if it was narrated by Stargirl herself.
But overall, meh. Didn't hate it, but didn't love it; there was nothing spectacular about it.