Having to trade miis through codes instead of being able to share them through NSO/Nintendo Network like you could do in the 3DS game kind of sucks, but it's still a fun time with a surprisingly good soundtrack.
Pretty fun, but way too many characters shared movesets with each other. The fact that four of the nine DLC characters were just clones of characters in the base game should show how bad it is.
BDSP are kind of bad remakes of kind of good Pokemon games. I would have liked to see some of the Platinum content, but I still enjoyed going back through Sinnoh.