Mostly the cheaper supermarket outlets with the queues here but OK at the more expensive main stream stations.
I say more expensive as the price gap between cheap supermarket and other station has narrowed the past year or so and even though supermarkets are a tiny bit cheaper there’s no problem for me to drive 5 miles out of town to a station and pay £3 a tank full more but no queuing so guess that’s what I’m doing in a couple of weeks time when I’m at a 25% of a tank but with my diesel turning 470 miles to the tank I only need a fuel stop once a month now where winding down into the cold dark nights.