Visited yesterday and charged with Plenitude app.
The charger is at the Eni station to the south of the main road. There's a pre-selection turn lane if you come from the freeway. When leaving, there's nothing to forbid turning left, and there's a little bit of space with dashed lines before the turn lanes appear so it's legit. But with the traffic it was a bit challenging to find a gap.
2 parking spots are marked with EV symbols. One is "sideway". No contactless reader.
At rush hour, even though there aren't many people coming off the freeway from Buchs towards Au, I was stuck for multiple minutes at the roundabout because people coming from the north and going to the Austria border were completely blocking the path. Since it's a 2-lane roundabout and you need to immediately enter into lane 2, it's a nightmare to squeeze into a gap.