I was in Lermoos, Austria on Saturday morning. The plan was to drop kids and friend off at the 180 Panorama hotel and me charge the car. The app showed one free charger.
It turned out a Dutch ID4 was occupying one of the ports. Since their charger is at the 'wrong' side, they actually made two spots useless. There was already a queue forming and we waited 20 minutes for this family to arrive. I had to wait another 10 minutes to get a charging spot.
I believe that supercharger should not be open to non-Teslas. Only 4 spots and one misplaced car will mean you get to the charger expecting a free slot but end up in a queue.
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We then reached Supercharger at Illertissen and there were 2 chargers free. Only three German cars, rest all Dutch. By the time we returned from the nearby McDonalds therew as a queue for both this supercharger as well as for the Ionity next to it. I almost witnessed an accident at the Ionity because an impatient eTron driver flew past everyone to take the slot that had ust become free, but then saw a woman standing in that spot guarding it for her usband (who was waiting for that spot) to drive into that spot to charge.
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Further up north things were better.
NB: There should be a supercharger at Garmisch this summer. It won the popular award in one of the voting rounds in 2023. Hope not to have a problem next year.