I have been driving a C Class Mercedes since 1997. I get a new one about every three years. I have leased 6 Mercedes C class sedans in a row. Collectively, I have driven these cars about 270,000 miles. I pay about $600 a month, including 10% California sales tax. I put no money down (other than first lease payment and license.) The payment includes all regular maintenance.
My lease is coming up to its end, and I was considering a Model 3. So I started monitoring this forum. About a week ago, I was about 75% certain my next car would be a Tesla.
However, the stories I read in this forum about all sorts of problems really cause me concern. Since 1997, not one Mercedes has ever broken down. In the 270,000 miles, I have never paid for maintenance or a single repair. Only one time did the dealer need more than a day to conduct a repair. (I left the car overnight, and was given a free Mercedes loaner.)
I have never had any problem even remotely close to the horror stories I have read here. If you scroll through this forum, about every 10th post is a complaint about some issue with the car, and or customer service. They include windshields cracking, paint issues, rattles, dings, vomit smells, etc.
Now, I do confess, no car is perfect. Mercedes can be problematic when you reach high miles. But I am talking about new car problems. The Model 3 appears to have a major quality control issue. The Mercedes does not.
There are also a lot of complaints in this forum about service. This is in contrast to my experience with Mercedes. Here's an anecdote: a few weeks ago, my sunroof shade wouldn't close. I brought the car to the dealer on my wedding anniversary, and told the service rep I needed it back by 2:00 (if possible) because I had a date with my wife. The service rep called me at noon to say the car was ready. (Also, I have had the same service rep for about 10 years, which helps.)
The good news: my salesman called after that service, because he saw the car was at 42,000 miles and asked when I was coming in for my next car. I told him I was growing bored with my C Class sedan, and was considering switching to a Tesla. Long story short: He offered me a C300 coupe for about the same price. (I must pay $1,000 cap reduction though.)
So, I am going to pass on purchasing a Tesla. Maybe in three years the company will get its act together. However, I do thank Tesla for getting me a bad ass C300 Coupe.