My only complaints are:
1.) The over world camera angles.
--- If there's a way to get it to stay in one place or being able to control it yourself rather than it being on auto all the time, I have not found it.
2.) Having to use the D-pad to walk/run normally.
--- Couldn't they have like...I don't know flipped it or something? Use the D-pad for the roller blades?
3.) Speaking of overworld cameras and D-pads...the camera placement in Lumiose!
--- I just want to enter that building without repeatedly hitting the wall on either side of the entrance. Not stand in one place while the camera moves to the correct position before I move towards the door.