Visited yesterday and successfully charged on the Alpitronic charger.
There are 2 chargers, almost in front of each other in opposing rows. The evtec charger is the 100kW variant. The Aplitronic is a 50kW. Both chargers can split between 2 users.
The parking has 2 entrances. If you use the entrance to the east with the big "Coop" sign on top you will arrive right in front of the chargers. It also works when entering from the other side but it's a big loop.
There doesn't seem to be any payment or control logic in place. The sign at both entrances says max 1h30 and no night parking. So it's free it seems.
The foot exit leads directly outside in front of the Coop but not inside.