My experience with Xenogears;

Disc 1

Repeat the following about forty times:
Play for ten minutes
Watch cut-scenes/dialogue for thirty minutes

Disc 2

Repeat the following about ten times:
Play for twenty minutes
Watch extremely boring dialogue for forty minutes
Finish game, contemplate on the necessity to cut back on overblown, over-the-top and full-of-itself storylines for the sake of making a game that's, yknow, fun
Go outside and play

Seriously, it's not as good as people make it out to be. The only decent thing about it is it's discussion of humanity (which boils down to (SPOILER)we got made by a big computer thingy so there). If you like big robots and stuff you may also like it.

Personally I think FF9, Valkyrie Profile and Chrono Cross were much more enjoyable.