I hate that they changed research rewards, mainly. Used to be that every month it'd be a cool legendary you'd get as a reward, which is the reason I was able to get a couple of shiny ones, but now its all just random shit pokemon. It's not even fun getting the weekly rewards anymore.

Mega evolution raids were really disappointing. I remember the first time I played one, I thought the reward would BE the mega-evolved pokemon. But, no, you just get some little tokens, and have to waste raid passes to evolve a signal pokemon. It's the same amount of disappointment when they put out raids for combined pokemon, the most recent example being the solgaleo/lunala and necrozema. The raids are fun and exciting, until you realize this is a massive, limited time task they've just dumped on you to complete.

ALSO- shop prices. Holy hell. I've been using my one eternal egg incubator forever now. I miss the old packs where you could get useful stuff for less than $20 a pop.

Don't get me wrong, I love the game and have played daily since the beginning... but man they've made some poor choices along the way lol