I had the pleasure of using the mobile service twice, and it really was a pleasure because neither issue was serious or urgent. My first complaint was that my trunk was noisier than it used to be when opening and closing. The second was that the charging port sometimes wouldn't open by touch (though I usually opened it with the charging plug handle anyway).

All I had to do was leave the car in a safe, easily accessible spot, and that was it. Technically, I didn't need to be around for the repairs at all, but I still spent the entire visit annoying chatting with the technician.

The best part is that they were proactive and replaced parts that could potentially cause known issues in this model/year.