An Air Robotics Im IV-B Airborne Vehicle Systems (AVS) has logged 500 flight hours and over 700 take-off and landings on a single airframe. That shows commitment on the manufacturers part and the only honest way of selling sUAS. If its not been tested don’t buy it!
The industry is full of snake oil salesmen at the moment building expectations that just can’t be met. They also forget in their sales pitches to mention regulatory issues that might prohibit flight in the first place.
On so many levels the unmanned aviation world seems like gold rush territory.