The alarm issue that bugs me is that you can “dismiss” alarms from the phone app, but until you also dismiss them on the pump they will continue repeating every 5 minutes. Given that the low battery alarm goes off when I still have 1.5 to 2 days of lifetime on the battery, repeating the alert every five minutes seems excessive. And saying that you can wear the pump under clothes only to discover that you need to pull the pump out to dismiss a recurring, very low priority alarm, seems ridiculous.
I did have a recent issue with the iOS app (t:slim battery life) that killed my pump battery life even though I am using the version of the app that supposedly fixed this problem.