Is dot Hack actually good?

I've been avoiuding Dot Hack in all it's forms.  Is it worth it to play through all four games, or just avoid it?

>>18

Excuse me for enjoying the concept of a game within a game. It's us that have faith in the series that get burned by BanDai's greed. You've already written it off, so you're safe. You're not going to be a hundred dollars poorer because of .hack//MATURE.