Visited yesterday and did a short charge on the DC charger.
There must be around 30 chargers here, of which 3 are open to the public, clearly indicated by multiple copies of the same sign with a map of the area showing which chargers are public.
The public chargers are designated A, B and C. A and B are the DC 166kW charger. C is a 22kW AC charger with attached Type2 cable.
A/B are connected through eCarUp. There are 2 copies of the QR code for ad-hoc charging. C doesn't seem networked, but it has a built-in contactless reader. It's 39ct/kWh, with a 50CHF reservation.
The entrance is on Kasernenstrasse, you then drive around the building counter-clockwise. There are no gates, it's accessible 24/7. Kasernenstrasse is currently under construction and one way only, so you'll need to drive in a loop if arriving from the freeway instead of the quick right turn.
I'm not sure what the power share is like on the DC charger. It indicates 166kW per plug at idle. After I started charging, the available connector was listed at 98kW. The sticker behind the charger indicates a 1000V/250A/210kW max output per plug. The charger can be connected to a 99A/68kW grid connection but I don't know if that's what they have here. The battery inside is indicated 233kWh, with 208kWh usable. During my test it started at 100% and went down to 98% after charging 3.4kWh. The screen shows the price live, but it's indicated as 0.59EUR/kWh while the eCarUp app says 0.59CHF/kWh.
I first tried activating the charger while I was already plugged in, but it didn't succeed. I then unplugged, started the charge from the eCarUp app and then plugged in and it worked.