For the first time, coffee is not sweet at all. I've been taking it for years on trips here and not at the first gas station, it's usually delicious. I thought that syrup was added there according to the recipe, but then they forgot, but they said that syrup does not go there, only juice and coffee. Either there was too much ice (there was a full glass), or something else, but there was no sweetness at all. Moreover, I would understand if at the end, when the ice melted, it would not be sweet, but the watery taste was immediately. Please adjust the proportions, the taste is at least 2 times richer at other gas stations.
The staff is very friendly, I would put 5 stars for it.