The software gets buggy over time, the quadric gets stupid, in general, the toy for a year, one and a half, then, like any smartphone, it starts to freeze up, only in the case of a quadric it will not restart, but will break into trash! He flew over the roof of an extension made of metal 100 meters from the remote control, so he turned on, lost control and fell on the roof! Extremely unstable radio signal, so fly around you! And DGI's attitude to their customers is simply irrelevant, a few years after the quad was taken out of production, they take all spare parts out of production as an ultimatum! I burned out through their fault the control board, because it does not cool well! And the expensive Phantom 3 Pro quadric is lying around like garbage!