My husband made this appt & I asked why did he call Mike Diamond, said he had heard good things...I wasn't so sure if I agreed; however, Luis and Sebastian had the best customer service, outstanding product knowledge, polite, thorough, friendly & made sure the work area was clean (inside & out) during the 7-plus hours/ALL day job. In addition, they arrived in a timely manner & although the job was expensive, the pricing was fair. I highly recommend these guys!