To be honest it’s been good. It’s not as configurable as Android which is probably good for my ADD , but everything works as advertised . I did have to switch from my Samsung S2 watch to an Apple Watch, because the Samsung didn’t work as well on the iPhone for health tracking.
I went with the 3 and was a little worried about speed since it’s a few years old, but so far I’ve been pleasantly surprised. I got the 42 or 44 screen size which is better than the my old Samsung for reviewing emails & notifications, and the battery life so far has been great. My only concern is my wife has the original Apple Watch and the screen got scratched a lot and apparently very easily. Guess time will tell.