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A range of 20 km is fully sufficient for that purpose and the very low disk load of the Volocopter (somewhere here is a diagram..,) will safe a lot of energy during take off and landing compared to tilting rotor concepts for higher speed and range.
Volocopter is still promoting the Volocopter City, the later model is no replacement but additional.
One not so talked about pax experience with any fixed pitch eVTOL is having to fly forward at downward tilted attitude;- the faster forwards, the more pitched down. The rotor has to provide both a lift force and a forward flight force. Now the clever bit of the helicopter rotor is the way the lifting disc can be tilted relative to the direction of flight using the cyclic blade pitch control. Thus this largely keeps the pax facing the same direction as where they’re going, which all feels very natural.
The pax in the quadcopter type eVTOL will have to endure turns while pitched downward and moving forwards. In poor visibility this matches the Bárány chair technique (blindfold, spin around and then tilt head forward) that Aeromedical doctors use to categorise a pilot tolerance to air sickness, as ii normally makes even the most hardened veterans barf.
It’s a hell of a investment risk if your customers just find it too unpleasant to step aboard.