Visited on May 20 and charged with credit card.
The contactless transaction was not finalized immediately, it took 2 days for the 50CHF reservation to be reimbursed and final amount billed.
I did not receive the advertised 50kW. Every time I looked at the screen I was stuck at 46kW, but the end of charge screen claims the peak power was 45kW. Not 100% sure if this was a car or charger limit, but that seemed low for <70% SoC on my Fiat.
The start screen says "charged info" 50kW DC max 80A. That's an odd number, the sticker on the side of the charger says the cable are supposed to be rated for 150A. In any case, the information on screen cannot be true, because even 36kW is more than 80A on a 400V car. It's unfortunate that the details page does not show the actual voltage or amps.
I was surprised no space was ICEd. They have still not made the charging spaces super obvious. There's just one vertical EV sign that doesn't specify the number of parking spaces, and the yellow lines on the floor are only on the sides, instead of "closing" the squares that are reserved. If someone parks over the the left line, you might completely miss that 2 spaces are meant for charging.