We put down our $1000 deposit within 10 minutes our CPO S85 showed up on Tesla site (Thanks to Hanks app!).
Two days later, we went down to the local SC to look at the car in person.
Let's just say we were underwhelmed. The previous owner had large dogs, and no interest in keeping the car clean.
The previous owner had not completed standard maintenance items, basically he just drove it for two years, and traded it in on a newer Tesla.
Tesla proceeded to spend 3 weeks fully reconditioning the car. They installed new : tires, brakes, brake lights, UMC (aka charging cord).
Tesla didn't fix two minor "wear/tear" items we identified, but we accepted car.
On subsequent visit a few weeks later, they picked up our car from our driveway and gave us a P85 loaner. They finished maintenance including titanium battery shield and putting on the S85 badge.
Car runs and looks great.
Couldn't be happier.
That said, we do live only 20 km from the SC, so it was very easy to check on the condition of the CPO we reserved prior to proceeding with the purchase.