Previously used Phantom 2, 3 Wrappers flew off for 1-2 years in difficult conditions (rain-snow-wind-strong magnetic interference-permanent flights from powerful radio transmitters for him) for no apparent reason (interference, strong wifi noise or the presence of a nearby RES), 100 meters above his head in a clear sky, The copter itself is functional, excellent shots, perfectly follows the object and follows it Indoors, he will kick because of the sensors, which can lead to hitting the ceiling (after all, there are no sensors on the cover) I recommend using spinning when using a drone in open spaces =)