I build and operate "real" drones. I ride an inner course and rarely circle more than a few times in a row without falling. I flew it all over the house on video over Wi-Fi! If you are familiar with drones, you know that this is not usually possible. I have $500 wireless drones that have too much video latency to fly across the screen. THAT'S GREAT! A REAL FPV EXPERIENCE! with a very manageable latency. That's a compliment I've never paid for these types of drones. The reason it can fly indoors may have to do with how slowly it moves. It's no speed demon, but more of a feature than a bug for most drone pilots. It is stable in altitude and calibrates very well, making it immobile. It almost seems like it has optical airflow sensors, although I know that's not true. It's just a very well designed toy. It has brushed motors so it won't be a long term model, they rarely last more than 10 hours but 10 hours is a lot of flight time and when you get to the end of their lifespan. You will be ready to model more hobby. I recommend this little beast to EVERYONE, kids, hobby pilots and experienced FPV pilots.