I have had the car now for over 2 months and have supercharged 6 times in 3 different states. I will say I have been overly impressed with the Super Charger. I can honestly say with my wife and 2 kids, we have never had to wait a minute for a Super Charger. In that I mean that we always had to eat, go to the bathroom or get a coffee and we never sat around waiting for the Car to charge. And we have done 2 different trips over 500 miles. Maybe we got lucky, maybe we use the bathroom a lot, but when starting with 310 miles range you don't really need to stop a lot in order to go 500+ miles. I hate to bring this up because the Model S guys are screwed with this but using only around 250 wh(M3) vs 350(Model S) makes a big difference. So a Model S is going to take a lot longer to add 100 miles than a M3. I know the generation 3 superchargers are coming soon, but at least with the 3 I don't think much more is needed to where people consider it as convenient as going to a gas station. Final thought. I know Tesla says they don't envision the Super Charging as being a profit center. That is nice of them to say that, and I am sure it has been a drag on their bottom line to date. But I have spent $17 over 2 months. That is about $100 a year. If/When there are 200k Model 3's on the road (this time next year) that is $20 Million in revenue. Would not be surprised if they go over 100 million in revenue in Super Charging in 2020.