My son just bought one of those things to record himself while wake boarding behind his boat. I assume it can keep up with him but honestly don't know. Way too much money for me to use when there's perfectly good Valkyrie stuff still out there needing to be bought.

My understanding is that the quad will follow a homing beacon as long as it receives the signal, it won't avoid obstacles such as trees, power lines or bridges. It's just trying to maintain a certain distance and position from the homing beacon. Would be fun if it could keep up with a Valkyrie but, that may be asking a bit much.