he's a very good mechanic. In fact he's the best I know, and I know a lot.
He takes the trouble to check and correct the alignment of the derailleur dropout when they sell a new bike, to check every spoke with a tensionometer, to true the wheels, to bleed and top up hydraulic brakes, and to re-grease all the bearings, replacing the cheaper Shimano bearings with Dura-Ace bearings of the same size.
I'm with Mr. Paul on this. Goods have to fit for purpose. My brother is in a small town and relies entirely on his reputation (and he's been doing it for over 20 years). He can't compete with big shed operations or the
Wiggle prices, but he can stand by the stuff he sells.