I think its boring, the beginning was good but then after that, I just kept ending the days and thought thats what I was supposed to do, but nothing happened. So I thought the game was probably the worst game of all time gameplay sucked too you only control one person.
I respect that you don't like Persona 4 however, your reasons supporting your opinion is kind of lacking...
I suggest you replay the game and pay more attention to the plot so you can progress.
Though, if you're not a nonlinear kind of player (basically someone who likes to follow a set and predetermined way to do everything) Persona 4, or any other kind of wide-spread kind of gaming experience (RPGS like Elder Scrolls for example) might not be what you're into...
Anyway, I plan on getting a PSP soon, so I guess this would be another incentive to get the game instead of purchase in on the PS2 (cause I've never played PERSONA 3)...