I can't lie and say I'm not super super biased for gen 5 and before, but I don't hate this game or gen 7 like I do the switch games. I still believe the jump to 3d graphics was a negative but for being released on the 3ds two years into it's life, I can't say the graphics aren't impressive. Battle animations are unfortunately a lot uglier than the previous sprites but environments, especially the central lumiose city are very very pretty. In terms of gameplay changes, I like mega evolution more than a lot of the later gimmicks and honestly if I had to choose one gimmick to be carried over to future games it would be it, but outside of that not much has changed.
As for story, it's boring, your rivals suck, the backstory is unnecessary and convoluted, and team flare is the worst villain team in any pokemon game, and there is some heavy competition.
but professor sycamore is pretty hot.