It works. That being said, we have a 10 acre open field behind our house that has a tree line all around it once it got above the tree line. It got caught in a light breeze and was not powerful enough to come back despite full battery wind took it into the forest to never be seen again. I am absolutely in love with my holy stone. Drone id been looking for something that would be a good starter. Drone got a very inexpensive starter for christmas two years ago, and it last just moments. This christmas, i treated myself to a holy stone, f, 181 quadcopter and what a difference had it up and flying with only about an hour’s prep, mostly battery charging, and have been flying at every chance.