Guitar Hero 3 is a great game, with some issues. If you want a good solid game that will be fun to play look no further than this. However if you're not a casual gamer then look away, this game is really hard. Medium and Easy are actually pretty easy but once you hit the last few songs of hard you're fucked. The game is also really hard, it took me until last month to bear Through the fire and flames on expert with 5 stars; hardest thing ever. The guitar is an improvement from last games and easier to play with. The song list is really great with over 80 songs in the game. If you don't have online however and no one to experience the game with then there's little to justify the game's high price tag...
