I took my M3 LR AWD from Pittsburgh to Hilton Head, it was about 15 hrs total with stops, normally 11.5 with stops in ICE.
Autopilot was nice, but not as much of a stress relief as I’d hoped...
Having to jiggle the wheel correctly and cancel “Leave the passing lane” suggestions were annoying.
Having lane change fail when there was nothing around the car and jerk violently back into thee original lane, waking the passengers so they could yell at me was annoying.
Trip planner needs work. One of the suggested superchargers was off the path onto the Charlotte beltway, I wanted to skip it. I ended up having to manually trip plan from current location to next supercharger over and over. It would be so much nicer if you could just choose which superchargers to stop at along the route. Seems like a simple no brained that you could fix in the time it takes to write a fart app!
Super chargers at convenient food and shopping locations was a pipe dream.
WV superchargers are at Sheetz gas stations. They were all available, but some were marked 15m general parking not EV only. They often had oversized trucks parked in a stall or two. There was one Sheetz near a mall, but it was a 1000 yard hike to get to it across busy roads without crosswalks (fine for adults, not so much for young kids).
Carolina superchargers we’re behind hotels. Again, not fun walking the whole way around the hotels to use the restrooms, and 1000 yard hikes to restaurants.
On the way down, I was a newbie doing full charges. On the way back I tried to arrive low and leave before charging slowed. It really ended up being a wash. The density of superchargers on the route wasn’t enough to make a difference, south east isn’t as well covered as north east.
On arrival, there is no supercharger within 40 miles, and the hotel didn’t have anywhere to charge. It’s all gated “plantations” for each rental area, so most destination chargers were behind gates. A few weren’t, and there was one not far away in a shopping/restaurant area. Luckily, there were 2 there, a Tesla and a non-Tesla Charger. When I arrived with 23% SoC from the last closest supercharger where I filled to 98%, there was a silver Model 3 on the non-Tesla Charger, which lead me to believe there was another Tesla using the destination charger, but I never saw it, and it was a 6 hour charge... I didn’t know if I’d get to use it again. Luckily, my folks could drop me off and pick me up so I didn’t have to spend it sitting there for all 6 hours. The Silver M3 and I ended up using the two chargers for the week. This was during the off season... I don’t think I’d trust HHI to have enough charging for the season, you'd spend your vacation checking for available destination chargers.
All in all, I didn’t have any problems that made me want to ditch the M3 on the trip, but the available supercharger network didn’t help with solving how to charge when you arrive for a week miles from the nearest supercharger, and there is going to be a lot of concern that the influx of M3s means destination chargers aren’t going to be available.
I was seeing mostly MX and MS at the superchargers, and I was driving from 4pm to 7am, so there wasn’t any full superchargers, but this was off-season travel, night travel.
I’m not sure I’d recommend vacationing in a Tesla until they get v3 superchargers so your not adding 1 hr per 4 to a long trip, and until they get super chargers at more final destinations.
That said, I can’t imagine vacationing is possible in any EV that isn’t a Tesla. You just have to love your Tesla enough to take it with you and put up with the issues!