I am a relatively new Tesla owner and driver, I took delivery June 6, 2019. Over that time I have been fortunate and always received regular software updates, and the majority of the 15k miles I have driven have been on autopilot and often NOA. The most descriptive comment I have heard regarding the self drive features was from my son who said it was like riding in a roller coaster. I had to agree, and some found it scary but that was back in July. Last night my son was riding with me and asked if I was driving or was it the car? It was the car with 2019.40.1 and HW3. There has been a lot of improvement in the overall experience, for me that was proof.