This is what I believe will be a (perhaps minor) roadblock towards adoption of these devices. It's relatively cheap compared to what's on the market now and appears very high quality. The problem is that flying machines are not well suited to a sudden loss of control, with their best option being crashing straight down.

As an intermediate pilot myself, I'd be scared to fly anywhere near the style that the promo videos do - over open water, one mistake means your drone is taking a dive. More experienced flyers are used to the fact that flying machines crash and parts need replacing on a fairly regular basis no matter how carefully you fly. That's going to be a harder sell to people buying a complete package expecting awesome output like the promo videos.

Sometimes a propellor detaches mid-flight, or the battery unplugs due to some crazy vibration. Of course, it shouldn't happen in a good design, but users are careless and it only needs to happen once to cause a good crash.