This book is a classic. I recommend it to every teenager. It was the first book that really got me interesting in reading for fun. It's highly recommended by everyone who reads it, and I completely agree that it's a must read.
The storyline is easy to follow, and it brings up a lot of subjects that are popular to go through at the age group that it's aimed for. Even though it was written over a decade ago, it's easy to see that problems that teenagers have don't often change through generations.