Today, I am covering, rather shortly in fact (As I could have gone on for a good solid 2-4 hours talking about my Tesla Experience), my experiences with Tesla since 2013. How Tesla has changed, how the cars have changed, supercharging, quality of the vehicles.
Watch to the end for some follow-behind drone shots!
I found what you said was interesting. ~500 problems in a few years is bad reliability! I am surprised you're having problems with your door handles on your 2016. My car is a few months younger than yours and I've never had any door handle issues. The only defect was the headlights started buzzing, which was common for the early refresh cars.
I also had some scraping of the baffles on the radiator which was some flash on the plastic molding. They told me it wasn't a mechanical concern, just a noise problem. They ordered some more baffles, but the noise went away. The flash probably wore off.
So far the car has had fewer problems than my 1992 Buick did and I went on to drive that car for 24 years. It was still in excellent running condition when I sold it.
I was pondering what the difference was last night and I think your cars lives outside doesn't it? Mine spends every night in the garage and the weather here is quite a bit different from Wisconsin (I'm in the Portland, OR metro area). Summers are warm and dry and the winters are a lot milder. Maybe the failures are due to moisture collecting in the handles, and/or a combination of severe winter weather. As cold as it gets there, having moisture in the door handle mechanism that freezes and expands would probably not be good for the mechanism.
Just a few thoughts.
I'm glad to hear the mighty steed helped save your wife's life. I told my SO your story and she pointed out that is a drawback to living where we do. The nearest hospital is about 20 minutes away. Though emergency services is pretty good. When she had a gall stone attack out of the blue (and we had no clue what it was), they showed up in about 5 minutes.
I haven't had to drive my car in an emergency, but I do trust it more than any car I've driven to push the edges of Physics if I have to.
I did have one hospital story with my car. My SO needed surgery in April and I was so discombobulated when I parked my car in the parking garage I lost the car when it came time to leave. An employee tried to help me pointing out his key fob has a way to honk the horn. I was ticked mine didn't, but after he went off it dawned on me I had the Tesla app on my phone. So I walked around the parking garage honking the horn from the app until I found the car. She and a nursing assistant were waiting at the entrance of the hospital wondering what happened to me. When I did drive up, the NA told my SO "cool a Tesla!"