I downloaded and printed this book for my 15 year old class. I didn't know how it was going to work. They loved it so far. We're on page 16 and doing about 2-4 pages per class. They love the story and can relate to the kid. There's a surprising number of good vocabulary, sentence structure, idioms and American customs that keeps their interest.
I will do the whole first book with these guys, its too hard for younger kids and too simplistic for older ones. I was happily surprised. And the illustrations actually help a lot