This has to be one of the worst remakes for a game ever.
It shipped as a horribly buggy mess without a title screen, finished music, online, cutscenes, or a postgame. It forces an update on the person that just paid $60 for it (the originals on DS were $40) half the size of the game so they wouldnt have to pay to ship cartridges with more storage which also means it will be impossible for someone to buy this game complete when Nintendo stops supporting the Switch's online services.
The art style is in my opinion lazy and uninteresting excused by it being a "faithful remake" despite it not being faithful to the original underground, contests, or game's fucking balancing. BDSP is soooo """"faithful"""" to the point that they just copied over Diamond and Pearl's code to use as a base, but also somehow managed to introduce even more glitches into it too. Also i guess just fuck every single thing Platinum did to make Sinnoh an actually good region because all they include from Platinum is the new Pokemon, but only in the new areas of the underground. They spit in the face of one of my most beloved Pokemon games, taking out any of it's many improvements to the story, characters, post game, and balancing for the sake of faithfulness to the versions of Sinnoh that nobody prefers.
This game is what happens when you barely pay an outsourcing studio to make a whole Pokemon level remake in only 19 months. A complete waste of time for both the developers and players. It hurts me to think that this game sold over 14 million copies, worst case scenario they'll do they same fucking song and dance for Black and White because they know it sells.