Greetings,
We are a newer program at Mayo Jax and just this year have our first full complement of residents, 4 per class. We have had growing pains like any place but overall the experience is excellent. The reviews on scutwork.com are relatively accurate.
As far as boards go, I think anybody with a step I > 220 would get interviewed. I will say, however, that just boards alone aren't enough for most disciplines. There is a sometimes broad chasm between book knowledge and clinical sense. Best to have both, I suppose, but...my advice would be to do as well as you can on the boards and feel competitive at most programs with a step I > 220.
Good luck,
PMMD