They have an oil change special, 6-8 pm. M, W, & F. I made a Friday appointment at 6:30 pm, explaining that I would be waiting on the service. Upon arrival at 6:30, the Service Writer advised they were a little backed up, but he'd "get us in" I explained that I had an appointment, he said he'd "get us in" So, I watched my car sit for ONE HOUR without moving. I asked the Service Writer about the timeline and he said there was still THREE CARS ahead of mine! Really? I had an appointment, which obviously means nothing to them. If you are going to schedule appointments, you need to honor them, This WAS NOT a "First come first served" drive in deal, this was a SCHEDULED SERVICE APPOINTMENT. Obviously my personal time is not important to St. Charles Hyundai, but it is important to me. Now after wasting this hour, I need to find another service center and start over, I WILL NOT BE RETURNING to this location for service. And, since this is how you treat customers after the sale, we will look elsewhere, probable Subaru, to upgrade to a 7 passenger SUV. Our family bought two new vehicle here in 2017, but no more.