I only refill (my car, my wife's, and my bike) at this specific service station. The staff and attendants are always friendly. I'm not just talking about washing my windscreen without me asking - it's their general attitude that makes it a pleasant experience to do an unpleasant (and costly!) action.
Buying stuff at the shop is just as nice an experience (although overpriced - but all garages are overpriced due to the convenience and availability after-hours of their goods).
Kudos. I will keep coming back.
0 comments