It did well in Japan, but abysmal abroad. Largely because the game decided it would be a great idea to bring back the concept of dice rolls from PnP RPGs, so every time you performed any kind of battle action you had to deal with a modified slot reel (think Tifa's Limit Break) and it was pretty easy to botch everything. It also had an unstructured story and a terrible board game style world map, with equally cumbersome controls. The SaGa franchise has always been known for being really experimental but Unlimited SaGa took it to a whole new level.