Has anybody seen Lady GaGa in concert recently?

i'm going to see her on January 12th (less than a week!!!) and i'm SO excited!!!
i was just wondering if anybody has seen the Monster Ball tour, especially since it's been revamped for 2010.
has anybody seen any of Lady GaGa's older concerts?
i'm sure it's going to be absolutely fantastic, but i'm just wondering what others hae to say.

peace! n_n