I liked D:OS a lot, but I never beat it. Partly because my save got corrupted for some reason, and also because the combat was trivial by that point. Mostly just because I hadn't got enough star stones by the time I got to the temple door and just was too lazy to find more. I heard the temple and the boss fight were pretty lame anyway, so I didn't feel compelled to frustrate myself just to complete the game. Almost all RPGs get tedious by the end.