I must say I am more excited for the Etrian Odyssey that actually has main characters that follow a story. I feel I would like this game more than the other persona games but all in all I just was never really into the setting of High Schoolers by day and demon trainers by night thing. All the tedious time management things always really bothered me as I felt I could never really do what I wanted to without worrying about missing something important.
It's odd that you say that, because normally I'd HATE a game centered around the daily lives of high school students. But I think what makes persona so great is that it uses the daily lives/high school theme in order to frame it's characters as totally normal people thrust into completely abnormal situations. They are normal kids who go to school and deal with life's bullshit (like cunty teachers and dickface classmates) and then have to put all of those things (that are hard enough on their own) aside and oh-by-the-way go fight a bunch of monsters in a dimension between/beyond time (at least in Persona 3's case).
I tend to gravitate more towards more adult themed characters but in Persona's case, I don't know how effective following some plumber or electrician around for 9 months would have been. Though, that worked to a degree in Catherine.