No 1st hand experience Jim, but I did some looking around here and they are in a group associated with our advertiser, mybookie. Likely a good shop for the recreational player, and not shy about reduicing limits of any wise action.
I haven't used them. The one thing I've heard about them that will bother some players is they have one of these phantom bonus systems. i.e. - it expires upon cash-out so if you lose all your money, that's fine - you had a bonus. But if you win and try to cash out, they keep the bonus.