Campaign is alright as long as the repetition doesn't bore you yet, but character customization is real fun.
For me, most of my time is spent on the wardrobe section in this game, much like a little girl with her Barbie set. There are tons of costume customizations where the only motivation for me to play the campaign as well as some VS fights is to unlock more of these costumes! Turn Siegfried into FF7's Cloud or Setsuka into KOF's Mai Shiranui (sick giggle...)!
Anyway, the way the game appeals to me doesn't really justify Broken Destiny's premium price, so a weekend rental would just do well.
KingLim