Yes, micro, low and mid-stakes benefit the most from Rakeback. Effectively in cash games, the lower the stakes you play, the more you will be affected by the house’s rake. That is why micro-stakes will be the worst affected as virtually every hand you play will be on max rake for that site, 5% usually. The higher the stakes you play the smaller the rake percentage will be as there will be a cap on the rake charged per hand, therefore you need an effective rakeback deal at lower stakes in order to beat your competitors and the house rake.