I have 1,2, and 3.
Its a fun game, I've been playing guitar for 4 years and when I just started playing guitar hero, I couldnt even play easy. But I've gotten better, I've beaten all games on Expert except #3. Can't beat The Battle with Lou on Expert.
I also find it hilarious when (YouTuber's Mostly) Watch a video were someone gets 99% on Jordan, Expert Mode, Then says: FAG! YOU HAVE NO LIFE AT ALL, GET A REAL GUITAR!! Do they really think people who are that good @ a video game wake up, And play guitar Hero for 23 hours? Then Sleep, And repeat the same thing every day?