I returned from a 2.5K trip from Washington DC area to Key West FL. I went along the same route 3 yrs ago in a Model X90D. That's over 48hrs on the road for our family. Here are my thoughts about the trip and some X/3 comparisons.
Let me first share which is a better road trip car for a family of 4 with kids* - It's a tie between X and 3 :)
*Kids aren't in car seats anymore
Superchargers: There are a lot more superchargers along the way, no planning required on I-95. Just get in the car and drive.
Autopilot: EAP with HW2.5 was superb along the 2.5K miles - nothing major to report, just reliable safe driving (usual disclaimers about driver staying alert apply)
Special mention about EAP in Orlando/Miami corridor - EAP was especially solid in that area, EAP just felt better here. Lane merges and exits were flawless, even driving along narrow curved overpasses was nice - I recorded several good maneuvers on my drivecam because I was that impressed. Perhaps I'll find time to post those videos here.
I do not know what kind of tech goes on with EAP/FSD, but the EAP experience in Area X is not the same as experience in Area Y.
I had 3 phantom braking incidents over 2.5K miles, that is a huge improvement from my previous road trip experiences.
I think we are about 90-95% of what EAP can achieve, the room for improvement is truly narrow.
AP1 on the X90D was nice, I know we moved along and the current autopilot has long surpassed AP1 and is awesome. Just giving credit where it's due, AP1 was very good even 3 yrs ago.
Range: The range difference between X90D (285miles) and 3(310miles) is irrelevant when travelling with kids. For perspective, I paid overtime fees at many spots because the car was done charging, and we weren't ready to move on. I also stopped at a lot more charging stops than the route guidance suggested.
Wawa/Sheetz: These guys are really making a difference. Looking back 3yrs, this kind of convenience that combined charging/food/restrooms was very rare. Now it's becoming common place. I appreciate their contribution to the Tesla road trip experience. And, I'm also tired of their food/coffee :))
Drive Comfort - Practical outlook - Road Noise - Lying down flat:
The X (and S) is a far more comfortable car on a road trip, no contest. Which is why I feel that I need to talk about the practical aspects between the cars. It boils down to the 3 costing a fraction of the X - so there's that :))
There are some areas where the road noise on the 3 was horrid - and it's not the car, it's the road. I'm sorry if you live in such an area.
The 3 allows drivers to lie down flat (tesla camping) even if its a for a short duration lying down flat really helps on a longer trip - The X is no match to the 3 in this aspect.
Rear seats on the 3 are Ok for kids on a longer drive, but not so much for adults - Keep in mind we're talking about 10+ hrs drives, they're just fine for a couple of hours.
Travel time + 25%:
Even with faster charging the travel time for our family is about 25% more than what Google Maps would suggest for non-EVs. Things didn't change from 3yrs ago, it's not the cars or the supercharging network - it's about how our family travels. Overall just relax, use Autopilot and the road trip experience is much better (and safer)
I've had lots of time on the road to compare Tesla's routing vs. Waze - and I've come back to the same conclusion each time, It really doesn't make much of a difference.
Tesla's guidance doesn't show every road incident on the map, so I expect drivers to second guess the route vs. Waze where everything is shown on the map. That might help folks trust Waze more. But I didn't think either system has an advantage over the other.
However, I did have Waze open for over 70% of the route - I just felt better knowing about road hazards and speed traps. I hope Tesla includes that kind of feature(or does better)
Temperature control on my car was a downer:
I gave up on automatic temperature control in my 3 after a few hours of driving. It just wasn't doing the job as it is supposed to. Unfortunately I didn't carry my handheld thermometer with me because we were carrying a lot of stuff... And to think I bought it just to record the HVAC problems ¯\_(ツ)_/¯
Trash at Superchargers:
Some of the Supercharing sites were littered badly (pictures below). It is one thing to see trash at a site, and its another sad level when you see a trash can just paces away. I'll say this - your vanity plate with a green message means nothing if you do not care enough to keep the charging site clean.