Visited on May 20 and charged without issue.
The chargers have been migrated to Sintio. Not sure when exactly their website was updated, but there are newer pictures where we can see one of the stations has a Sintio QR codes. They don't tell you the number of chargers or the price.
This is the first time I actually visited by car. When arriving from the Zürich Süd interchange, at some point there are Sihlcity signs telling you to use the left lane. There's actually quite some distance remaining at that point to change lane if you are on the wrong side. Then there's a ramp down on the left of the main road leading to the parking. After the turn at the bottom of the ramp it split between "Besucher" and "P+, Hotel, Taxi, Anlieferung". You need to go left towards "Besucher".
Just before the ticket gates there's a big digital sign telling you how many parking spaces are available on each level. There's an EV symbol on P4, but unfortunately it doesn't tell you whether any charging spaces are available. That would be the perfect time, because at this point you can still decide not to enter.
Inside the ramp I was a bit confused, because they didn't write the level numbers, so you're just turning for what feels forever. The correct floor is designated by "Mall 2" and an EV symbol with parking spaces counter. You actually need to drive up 6 levels, because you first go up to level 0, and then continue up to level 4.
The counter at the entrance to the level for can only count up to 9 charging spots, and that's what was displayed. But there are more chargers than that.
I counted 13 chargers, it's the 12 existing blue spaces labelled A to L, with a new charger on handicap spot 401.
Now everything is AC only. The chargers A, B, and the 4 in the handicap+Tesla area have all received new Zaptec units.
I believe charger I / 446 might have an attached cable. It's one of the accordeons-style cables like in the past, and we see it in the official picture on the shopping center website. But someone was charging when I was there, so I couldn't tell for sure if it was attached or not. Every other spot comes without cable.
The pricing is complicated and I didn't find the payment page super intuitive. The price actually changes at 18h and I arrived right before 18h, so it was first telling me 0.32CHF/kWh in big, with 0.64CHF/kWh listed as an upcoming tariff. But shortly after, 0.64CHF/kWh was the tariff in effect. It seems like the price isn't locked when starting, so I got billed some kWh at 0.32, and others at 0.64. The more expensive price applies for 2 hours in mid-day and again at the end of the day. I assume it must be related to demand charges and the fact the building consumes more energy at those hours, because otherwise it doesn't make a lot of sense. They should offer an option to pause/slow the charge during those 2 hours, if the goal is to preserve energy...
One car was not plugged in, and I saw they had received a note from the management on the windscreen telling them the charging spots are reserved for charging. The fact those spots are reserved for charging is not actually displayed that prominently. The blue spaces use non-standard symbols. But the vertical sign on the wall with usage instructions say to only park there for charging.