I have mixed feelings about the drone to be honest. The concept at a high level makes sense for specific use cases. But given the extremely short flight times they advertise for it - no.
Ideally a few of these devices in various sizes and runtime could launch on command or based on some threshold the user deems appropriate. There was a project I worked on for a company that used a compressed tube to shoot small cameras into the air that were mounted on roof tops and other hidden areas.
Once launched a cylinder would begin filling a balloon with what ever - helium?!? So the camera would float all the while tethered to a guide wire connected to a automated winch.
The idea was to be able to launch at will a camera system (on demand) at varying heights not affected by batteries. Overall the concept worked from hidden, launch, deployed, monitor, varied height etc. The captured video was fine.
Problem, like any other aircraft (drone) they don’t operate well in moderate winds!!


Ever get sea sick or watch some idiot filming and the video is bouncing around?!?
Can’t say that offers great video surveillance with no ability to steer!
Years later guess who tried to copy our initial project - Google!!
Think, their Internet balloon fail.
Many years later that same concept of being shot out of a tube still exists but they now use a drone to steer. Along with flux magnets instead of compressed air to shoot the package out and some new chemical to fill the giant condom stay afloat!!
