I was a patient of Dr. Prats for a very short period, and did not have any extensive work done by him. As a result, I have limited experiences to judge his skills as a dentist. He seemed knowledgeable and was very patient. He took the time to answer your questions and explain things to you.
I stopped going to him because the front office/insurance staff seemed inexperienced and miscommunicated the insurance coverage and responsibility for the share of costs for services. As a result, I overpaid for an office visit. This wasn't a problem until I asked the front office/insurance people for reimbursement of the overpaid amount. For some reason, they were unwilling to immediately reimburse me for the overpaid amount. I had to have several drawn out debates with the office manager before they agreed to cut me a check for the overpaid amount. The poor ranking for stress&anxiety and customer service is based on this experience with the front office/insurance staff.