I had a 2014 Model S. Best car I've ever had. Took delivery of a new 2017 Model S. Worst car I've ever had. I took delivery of a 2017 model S on September 20th. As i drove off of the lot in Dallas, the air conditioner quit working. It is now October 9, and the issue has not been resolved. The service department is supposedly working on it diligently, but they have yet been able to be certain they have found the issue. My problem is, I bought a new car, and i no longer have a new car. I have had my car in my possession one day that is was not in the shop or on the way to or from the shop. There have been technicians working on it, crawling in and out of it, replacing parts, the car sitting around, presumably in the Texas heat waiting for parts, etc. Still don't have my car but when I do, it will have a serious service history that will hurt resale. I sure wouldn't want to be on their spaceship!