I tried to visit on May 15 around 20h40, but every single street parking spot was taken, one car was charging and the second spot was ICEd. Many areas were double-parked already, so I had nowhere to stop to inspect the charger.
When the location first appeared on eCarUp there was no picture, but one has since been added. It matches what I saw when driving by. It's an EVTEC crema&charge, and based on the eCarUp picture it seems like they chose very long CCS cables. A necessary choice, since there is no way to park any other way in this one-way street.
The eCarUp description used to say that parking would be free until May 1st. After that time payment is at the parking meter, so presumably exactly the same tariff as non-charging spots.