Visited on June 3 on foot. I had some difficulty finding my way to the roof parking, because they had put an advertisement roll-up in front of one of the directions signs. When it's not hidden, there are actually good directions inside. I am not sure if the 24/7 exit is also through the Migros building or if there's another path. The elevators don't go all the way to the down floor. You exit on the store level, go in front of the Migros corporate security desk, then down the enormous glass entrance.
The parking is undergoing renovation. Each week seems to affect a different area. I'll need to go back when everything is finished.
There are a lot more chargers than are visible in the app. There are 28 total, 10 are public, 4 are for specific plate numbers, and the others are for Migros collaborators. There's a sign with a map explaining the layout, but for some reason they attached it to the inside of the automatic sliding door, so you only really see it when coming back from shopping, and it's very difficult to read it because the door moves whenever you stand in front of it.
The 10 public chargers are the only ones with QR codes and the red M-CHARGE branding. The others just have a number and a short code.
At least 2 of the public chargers were physically blocked by the temporary barriers at the end of the row.