Agree re simplicity. Ehang has been using what is essentially a consumer drone design for some time, and has demonstrated success with many flight tests. Although they aren’t using the most efficient design, I wouldn’t be surprised if they dominate the short range air taxi field.
The Ehang AAV does fly, but it seems like a commercial dead end. They aren't going to get type certification to carry paying passengers under the aviation regulations that apply in most countries. The reserve endurance is too low, and the technology for reliable autonomous operations is way too immature.
