It's not "the most underrated" as much as it's judged fairly harshly. It's a decent game, but honestly it's fun. You can complain about the length or linearity as much as you want, but it remains a fun game. It has its bad moments, but it also has its good ones. It's a fun game that looks phenomenal, with awesome music, interesting setting, cool and interesting characters, as well as an interesting story and fun gameplay. For 60 it's expensive, but you can get it for pretty cheap now and for cheap I'd honestly recommend it.