I guess I fall in the lesser percent category. I have a Performance about 12 miles from the hacienda and I have received nothing less than stellar service from them.
I've only had to return one item, buyer error, and it was a no questions asked painless evolution.
They match web prices too.
I go in the early mornings due to my nocturnal existence and the average age of the guys working then is about 55. Might make a difference, dunno.