Short review. I love it. Fill out the app for the next batch for $20 shipped you can't go wrong.
Temp and humidity seem accurate as does the rain sensor. Luminosity at least in smart things is useful but not accurate. IE low at night jumps up to 3000+ during the day and not much higher, so great for reference to turn light on/off not great if you need to know if your skin will melt off.
UV seems to work well. It links to WU easily and the timelapse and pics are great. They also have Ifttt integration.
I'm waiting on my second one. I will either put it out front of the house for full sunrise/sunset coverage or give it to a friend/relative.