In this case, close IS convenient, since my husband and I live less than a quarter mile-ish away from Ryan's garage, which means that we can drop off and pick up our cars easily.
More importantly, they can perform inspections almost on the spot; if we call them ahead of time, they're always willing to look at a test-drive car we're considering to buy, and are objective with their evaluation.
"Mostly fast" refers to the guys being limited by how quickly they can get parts for repairs. If I had a friends looking for a mechanic, I'd certainly recommend Ryan's to them.
The one thing I'd change would be having them stay open a little later at night, only because my husband works after 6 p.m. so frequently.