I think, 50% rakeback is a complete illusion for most players. For me personally regulated sites are not allowed to give me any rake-back at all, because I live in Sweden. And on ACR I am on the lowest reward level, where the rakeback is a low single digit percentage, which of course totally dont matter at all. I have not even earned the first $10 yet. Also in general rakeback is important for cash and SnG players, but its not as important for MTT players, since winning players can easily achieve a dubble digit ROI in MTTs.
So all in all I will maintain, that 888 Poker is a good site for MTTs. I have not played there in 2022, but this is mainly because, I decided to do a challenge on PokerStars, and because I have moved more towards SnGs, where the game selection and action is way better on Stars. But at some point I might start playing MTTs on 888 Poker again. I completely agree, that the cash games on 888 Poker suck though. Very little action, high rake, and you cant even select which tables to play.