Visited yesterday and charged with credit card, no issue.
There are still no pictures or opening hours for this location indicated on Swisscharge. The chargers are indeed where the maker is, in the north-west corner of the east parking. You can briefly see the chargers when you arrive from the freeway, but you need to drive around the entire building to get to them.
It doesn't look like there are any gates for this outdoor parking. There's a sign forbidding parking except for Coop customers, max 1h30. That's probably not an issue for charging outside of business hours. There's a also a "Nachtparkverbot" but as long as you don't camp in your car the whole night I assume it's also fine to charge in the middle of the night and leave.
This is the first Energie360° location I visit with working contactless readers. There's one on every stall. The screen also shows a Twint logo and mentions a QR code, but I'm not sure how you activate that option. Maybe it's a touchscreen-only option. I used the button and it activated the contactless reader, 25CHF reservation. I had to re-authorize to stop the charge.
The charger screen mentions up to 250kW, but on Swisscharge the chargers are only indicated up to 150kW. They probably don't want to over-advertise the max power, as you will never reach it when 6 people are connected. I didn't find the sticker on the power cabinet to see which model this is. There seems to be a single cabinet, so all 6 satellites share from the same pool. It's probably 800V-capable, but because the customized the home screen I didn't see the usual "800V" label from Kempower, or the power available for each voltage.
I'll go back on a Sunday to verify that it's indeed open 24/7.