Almost all gas stations of this network have normal toilets indoors, which is an important factor, it is very pleasing, not with everything, but almost like in Turkey, it is very pleasant.
The eternal problem with queues. People do not respect the location of their gas tanks, which creates unnecessary fuss and delays occur. The gas station staff does not manage this in any way. The average refueling time is from half an hour or more.
Another big disadvantage: A VERY dirty outdoor toilet.