-After 3-4 flights, the Headless and Follow me options stopped turning on. - The "return home when the battery is low" function declared by the manufacturer did not work. The quadric fell when I planted it from a height of about 10 meters to the ground. The motors just went out. One leg broke. I don't think it can be fixed. Be vigilant and do not count on it when the battery is low. -The location of the built-in camera. With the built-in camera, it is difficult to "catch" what you need in the frame, especially if you want to take a group photo from a height. This, presumably, is a feature of all built-in cameras. -There were a couple of flights when I stopped catching GPS in the air. That is, the quadric ceased to "hang" in the air and began to fly rather quickly towards the trees. I had to steer and land with difficulty in manual mode. -As the first model (to understand whether it is interesting at all or not, to practice launching, etc.) it is expensive and not reliable enough. As a model for a more advanced level, both handling and optics are clearly rather weak.