Visited yesterday without charging.
The parking modalities must have changed since my last message, because it's now 2 hours free, then 2CHF/h. There are ticket gates.
The placement of the chargers is not ideal. They had to pick a corner where the back wall is not straight... There would also have been plenty of space to pick larger spots. Even just remove the spot next to it and make the 2 charging spots XXL spots like those just 1 spot over.