Let's not get ahead of ourselves.
Not showing stats is a drawback in my opinion, as well as the no limitation in level of players participating in a bidding.
Although tokens being refunded if you lose the auction is not necessarily good because spammers could raise the bid for a player, it can also help a sensible player in not participating at all. Personally I wouldn't participate in an auction if the entering bid was something like 5,6 or even 10 tokens.
Anyway, I think we must try this out for a few days to totally get the grasp of it.