Lilium, as I see it, has by far the most secure design of all air carrier designs we have seen recently. And there have been a lot including some really nice!

Lilium is the only company going for this distributed propulsion system with so many rotors, adding the the safety of the whole thing. Safety should be paramount! A couple of deadly accidents can literally ground a fleet otherwise.

Volocopter also tries a similar approach, but the lack of eVTOL probably makes that bird much slower than the Lilium product.