I have only had to calibrate one time in 10 months. I fly in my neighborhood “Alief Texas”, all the parks, the beach, Seawolf Park and have taken some good videos. I also fly in an area that 2/3 is just for flying remote control planes and unreal jets. They are unreal to watch. The 1/3 of the area I fly in I am able to go out a little over 1000 feet at an altitude between 200’ and 250’. I am able to fly deep into the woods and spot planes that went out of range of their control and crash. It is a great park to learn to fly in. I know a lot of people have had a lot of problems with this drone so I know I am one of the lucky ones. Fortunately I learned to fly drones without GPS so the one time I did lose GPS I was able to control it. The strange thing is this thing is so powerful that it wasn’t that hard to control without GPS.