They did not show up. I scheduled an appointment for 11/15 and on the evening of 11/14 I sent 2 messages to the supposed mechanic "Terry" and did not receive any response. This had me somewhat worried that they were not going to show up. Sure enough, the following morning I finally did get a response from the mechanic but that he was letting me know he could not make the appointment. This was very frustrating due to the arrangements I had made to get the work done that day and the fact that I needed my vehicle the following day for a road trip. I was mad.
However, I was luckily able to get in touch with Carter and the good guys at AnyPlace Auto Repair who were able to come out the same day! With that said, if you're looking for a mobile mechanic, skip YourMechanic and go with AnyPlace.