I have to wonder about the glide ratio. All those fans will probably create a ton of drag. If for some reason you have a complete power/engine(s) failure, that thing is likely to become a lawn dart.
At least with a helicopter you can autorotate if you lose your engine. Unless this plane will get an airframe parachute, I would not fly in it.
The glide ratio of an auto-rotating helicopter is not great; not a very hard target aerodynamically. The glide ratio is not going to be great if all 36 engines are out but I'd expect crash landing as a glider it should be totally doable and probably easier than auto rotating a helicopter (nose down to keep the speed up, flare at the right moment). And of course installing some parachutes on it is probably going to be a thing as well.
Of course that scenario is not great for either this thing or a helicopter in a dense city.
At least with a helicopter you can autorotate if you lose your engine. Unless this plane will get an airframe parachute, I would not fly in it.