These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Broken Base: Pre-release, Labrys was a very controversial character - some like her, others hate that she was put in the game. Mostly because she came out of almostnowhere, and what little information was known about her made her seem like a Mary Sue. It doesn't help that the Robot Girl characters were rather controversial in the fandom. However, once the game was released, people warmed up to her. There are still some people who dislike her due to finding her accent (Kansai for Japanese players, a Brooklyn one for the localized players) ridiculous.
Complacent Gaming Syndrome: A majority of your online matches will be Yu, Yosuke, Chie, Akihiko, and Mitsuru. To put that in perspective, that's almost half the cast.
The tournament scene sees a lot of Aigis. Kanji, Teddie, and Naoto show up more often too. But the others are rather rare.
Akihiko, for being a dense slab of beefcake who's prone to saying some seriously hilarious lines and for being somewhat of a top-tier fighter.
Mitsuru receiving greater focus greatly boosted her popularity. Her reaction to the Malevolent Entity taking her form in particular won her several fans.
Fan Dumb: The European fans continuing to treat Zen United and PQube as Scapegoat Creators over the debacle regarding the large delay in bringing the game to Europe, after it emerged that it was down to Arc Systems and Atlus not supplying the European build.
Yu's justification for not wanting to get Yosuke a new "nurse magazine" after Yosuke's mom burned the old ones. Yu would feel bad if he was popping into Yosuke's head instead every time Yosuke "uses it."
Teddie's English voice actor changing from Dave Wittenberg to Sam Riegel, due to Wittenberg being a unionized voice actor now. In a subversion, many were extremely pleased Erin Fitzgerald replaced Tracey Rooney as Chie.
Arena being the first region-locked PS3 game ever, to stop Japanese players from reverse-importing the cheaper international version. Quite a few fans were quick to cry foul and boycott the game in fear that other companies would do the same. To be fair, Atlus did make it very clear that both the NA and Japanese versions would be similar in content and released within weeks of one another anyway, so it would give no particular incentive to import the game and there would no problems with DLC support, as that has always been region locked to the same as the disc. However, this didn't help European fans waiting for the game, as the game has been delayed from the scheduled release date of August 31st and is currently scheduled for release on May 10th 2013. The EU release being handled by the same publishers as the BlazBlue series, which were notoriously delayed in Europe didn't make the whole backdraft better.
Giving the Protagonist the Canon NameYu Narukami instead of Souji Seta. To be fair, the anime has a North American localization, making the former name more recognizable, plus there is still the sizable fanbase who prefer Yu to Souji.
The decision to include the Persona 4 Arena Arranged Soundtrack on CD & with new artwork as a pre-order bonus with all European pre-orders was well received. The subsequent decision to release it on vinyl & only through the GAME stores in the UK in addition to the CD, with the pre-order bonuses not shipping outside of the UK, just set the angry fanbase off again.
There's even a portion of non-Europeans complaining it's not fair that only Europe gets the soundtrack on vinyl, despite the 8 month delay in the game's release there.
With the reveal of the Limited Edition of the game, the backdraft in Europe got even worse. Now people are either complaining about how everything includednote The pre-order incentive Arranged Soundtrack CD & digital fan pack, Chie's badges, a Teddie keyring, a 300 piece jigsaw & a tote bag just seems to be whatever they found lying in the warehouse & would otherwise be unable to sell, as opposed to something more substantial such as codes for the DLC, an art book or a figurine. Made even worse when it was first anounced to be nearly double the price of the standalone game, though it's claimed it was supposed to be £10 cheaper.
The Ultimax being a PS3 exclusive, much like BlazBlue: Chronophantasma before it, due to the Xbox 360 being a dead market in Japan.
Though it's merely implied, according to Mitsuru following her battle with Naoto in Naoto's Story Mode, her illusion self said "things" about her body. Naoto promptly blushes and wonders just what the hell her illusion self said.
Chie thinks that Labrys is really cute, strongly desires to become her friend and protect her, and is generally really emotional about her and cries when she leaves. Maybe Chie just likes robot girls? Or it could just be that she's The McCoy of the group.
In Aigis' story mode, General Teddie shows interest in Naoto's measurements. Put two and two together and either Shadow Labrys was just being in character, or Labrys is a Covert Pervert.
Speaking of Aigis, Elizabeth seems incredibly interested in her...
Scrappy Mechanic: Not only is the "auto-combo" mechanic (mash the light attack button and the game does a combo for you) regarded as a so-bad-it's-horrible tactic at best by most players, it even trips up players who attempt to do a combo consisting of light hits.