Very disappointed in service relating to run flat tires purchased and mounted here, both of which developed flats (sidewall holes) that could not be repaired very shortly after the Continental warranty expired. I do not feel that I received value for my $500 investment and found Mini of Pittsburgh's reaction to my concerns to be inadequate, bordering on indifference. I was left with the impression that these tires are not suitable for road conditions around here. I am switching to standard, less expensive tires, and buying elsewhere, so that a flat will not be such a catastrophe from a financial perspective . Also, service department hours at this location are not convenient.