The QuadAir drone is a product that has recently come on the market, and it's hard to say definitively whether it is legitimate or not. However, from what I have read, most reviews seem to be positive and based on customer reviews, the product appears to be a good value for the price.
The QuadAir drone is a small consumer drone that offers some advanced features such as auto-following, obstacle avoidance, and remote control. It also includes a stabilized 4K camera with an adjustable gimbal and a long range transmitter. It is a very feature-rich product and appears to meet most consumer demands.
Perhaps the best way to gauge whether the QuadAir drone is legit is by looking at customer reviews. Most of the QuadAir drone reviews I have seen have been positive, though there are some people who are disappointed and have had issues with the drone. Overall, I think that the QuadAir drone is a legitimate product that provides decent value for the price.