Visited today without charging.
The chargers are in the outside parking lot of the company.
A sign at the entrance says the parking is Privat Mo-Sa 05h-18h, but outside of that time is free to use.
Since the chargers have no special marking, I assume they are also open for public use outside of those times.
The sign on the charger is funny to me. It says to scan the QR code or enter the number of the QR code at ecarup.com/code. Except there is no number printed anywhere on the charger, the QR code is the only way to obtain the charger number. I checked, the chargers are ordered in sequence 1-6 from left to right (if you pick a number directly in the app or roaming).
There is some construction work on the other side of the street that makes the access road a bit narrow, but not a problem as long as you don't have traffic coming the other way.