i have the first three dot hack games and borrowed the fourth. its pretty good as an rpg goes, but i hate how you cant pick your class, just stuck as a twerpy twinblade forever

combats a bit lacking, and you cant count on the party members to be any good. plus, gate hacking is SOOO annoying. youll have to spend hours hacking enemies for just one item, the worst thing a game developer can make a person do. it has a prettygood story, though.
BTW, theres another dot hack series that is a sequel to that one. i dont remember the name, but its a lot better in terms of combat. plus, you can play as three different classes at once in the later games.