I'm currently at level 32, but I've been focusing on grinding for materials until recently. Now I'm trying to fast-track to level 40! I think a lot of the negative reviews are just what you say--people trying to bot and getting banned. Also I think a lot of people lack patience for grind-heavy games, but I actually like them because they make me feel like I'm accomplishing things. I'm a long-time Runescape player, and the grind is a big part of that game too, so I guess it makes sense that I like Mir4!