Mark was on time and super duper friendly. He was totally knowledgeable and VERY thorough. I guess it was good news/bad news in that it was a small issue of a GFCI switch having tripped and forced some outlets to cut off. I put the cost/pricing as 3 stars as he did not charge the $249 price for diagnosis and fix, but I guess $149 for diagnosis was steep for my stupidity! But I would highly recommend them.