I'm finding the show to be enjoyable but I think it's because like most here, I played through the game and loved it and every scene is like a good memory coming back. On the other hand I think I'm expecting the opposite of ZeronHitaro, I want the show to go slower, to take it's time.
Comparing it to an other show of this season, Fate Zero, I think P4 falls really short. For example, I'm not a Fate fan at all. I think that Fate Stay Night is fine but highly overrated and only decided to watch the new one because a friend told me it's was amazing and I though it wouldn't hurt to watch one ep. The first hour of it has no action, it's all talk and it's great and I think that is what's lacking in P4 right now, time to develop the characters.
We all liked the game because it was a mixture of character interactions, dungeons and a good story. Even if the anime focus on some other than others, which is perfectly fine since it's a different media, I don't think they should outright forget it. For one I itching ti see the episode where they go on that school trip and the guys have to eat the horrible food the girls make. Not relevant to the plot but in my opinion fundamental to the sense of friendship among them.