I received this today. I had some problems getting it to pair with my phone. Previously I had the Amazfit Bip and it kept trying to pair with that (even though it was in a drawer somewhere). I had to delete it first and still it took some effort to get my phone (Moto G6) and the band to pair. I also had some problem where a screen that read REGULATORY kept popping up and interfered with the setup process. I have no idea what it was, but thankfully it went away.
Instructions are provided, but they are very sparse - the booklet is big though because of the languages supported. I learned more going online and reading various user comments.
I still cannot figure out how to use the Weather feature. I can't see how to change the location and get the degrees in Fahrenheit. The music player is wonky - sometimes it works, other times nothing happens.
I downloaded another app mentioned here and while helpful it was a little overwhelming so I have to use that more.
The data on the default screen is too small for me - I hope I can find an alternate screen (I downloaded many watch faces) that is bigger.
In sum, it is worth what I paid for it, but I will likely go back to my Garmin Vivoactive.