i don’t have it yet
They aren't as bad as the memes might lead you to believe. There are rare crashes and some visual hiccups. In version 1.0 there is a duplication glitch using your ride Pokémon that was patched out in 1.1.
As far as exploitable glitches that remain, you can make your ride Pokémon fly faster and you can break out of the map. You can duplicate random items that spawn on the ground, but all of this is somewhat irrelevant.