I have seen a couple and liked those. The fights are by women that love to fight. Not much training and just going after each other. The fights are very unscripted and especially the first season fights are mostly fights for fun that were taped. Some are short, some are longer.
Beware that the unscripted character makes the fights more genuine, but the action is also less 'designed' for entertainment value. Most fights are by natural women. Very little silicon.
The theme is sometimes somewhat 'goth'. Some are shot in basements. Some in a living room.