It has a lot of features, but the core functionality doesn't work so well. Sync is absolutely horrible. You do stuff in the app and it won't show up on other devices even if you swipe down to force a sync. If you deal with an email on another device, it won't clear the notification automatically. Performance is extremely laggy (especially on older flagships and lower end devices) - I've never seen this app buttery smooth. Not even on my Pixel 6 Pro or Surface Duo 2. It's prone to bugs too.