Just finished Persona 4 about 20 minutes ago. I think I got the bad ending (I won't spoil it for you but it was a tear-jerker), but after playing the game for a total of 63 hours and 53 minutes, I think it's fair to say I've had my fair share of Persona action, and won't try and go for the "true" ending.
One strange thing I found with P4 was that it was quite easy, I only ever died 3 times, and that was just on one boss that I was too weak to fight against. I've watched all of the ER videos that have been done and read comments like "OH NO, HOW CAN YOU EXPECT TO WIN AT THAT LEVEL AGAINST *spoilers* yukiko's BOSS *spoilers*". I didn't spend anywhere near the amount of time levelling that Jeff and Vinny did and finished it with realtive ease. I think that may be down to me having a Persona at the end of the game that had Nul Fire, Ice and Physical.
Anyway, I really enjoyed the game, and have to send out a big thank you to Giant Bomb for starting the Endurance Run - if you didn't I'd never have played this wonderfully unique game.