This article basically hits on the reason I made the 'terrible mechanics in games you love' topic awhile back...Persona 3 has/had several design choices that were really, really irritating to people attempting to play the game...though at the same time, they were highly realistic. If you're running around fighting monsters, of course you're going to get tired and worn out...but in a video game, an RPG, with limited 'time units', the ability to level grind can be important...in the latest version, you still get tired, but only in the aftermath, affecting your next few days in the same way it always did, but allowing you to grind to your heart's content (and some times you NEED to grind...)...the game was full of 'nuisances'. P3P gets rid of most of them, and I feel it's better for it.