What is PokerRoom 10/20 5-max like?

I must be intepreting these things wrong because I just spent 30 minutes comparing the rake and different levels and PRs seems to be only slightly worse and that was only when the pots became larger. When the pots stayed smaller in relation to BBs the rake actually seemed to be better. I must be reading something wrong, because ti seems like with rakeback it owuld be a good deal.