I'm in the process of buying my first Porsche and had the PPI done at Hi Tec. The staff was very knowledgeable and friendly. Brad took the time to educate me and discuss all of my options, being very patient as I am still learning. The PPI was extremely detailed and he went through everything step by step to make sure that I had the info and resources to make an educated decision. Although I didn't go with the car being inspected, he has provided a lot of info on where to look and what to look for. I live in San Jose, so San Rafael is a good drive away, but because of my awesome experience here, I will be using Hi Tec as my go to shop.