It's pretty good, but but M&L and PM were a bit better, in my opinion. SMRPG was too much Square, and not enough Nintendo. It was also made at a time when the stuff that made a Mario game were very specific and the story and characters weren't important, which is why Square had to fill that void on their own. Thus, it wasn't as refined as the stuff in PM and M&L, which came from Nintendo themselves, in a time where the personality of the characters and plot elements are already determined, making it easier to produce a spot-on, Mario-based game.