This glitches in this app have gotten worse with each update. I use the Pokémon Go Plus band and it disconnects every fifteen minutes or so, unless I keep my phone unlocked in my pocket. And that brings forth another huge issue: battery drainage. I have to charge my phone at least three times a day if I use this app. I have also had a lot of issues with the app crashing after collecting from Pokéstops or freezing on the load screen when the app starts up.
Glitches aside, the game is a lot of fun. There are a lot of improvements that need to be made.
Meeaygan about Pokémon GO, v1.29.1