I'll be honest I don't know anything about MMA and most of the pages out there seem to rag on the weight in process - but I thought it was a fun thing to do at what seems to be a pointless televised exercise.
She's cool. Youtube has a bunch of videos of her weigh-ins and fights. Also cool for her personality-which shows in one where she is asked what would happen if she fought Cyborg and replied "She would kill me as I am 115 and Cyborg is 145."