Welcome.
Depends on what type of driving you're doing. Most folks find driving more than 6 hours a day is too much. How will covering 400 miles per day impact your travel itinerary? Will you have time for longer stops other than fuel and lunch? There are times we need miles under our belts. Other times we click "avoid highways" and use the back roads to get to the next destination.
FWIW we have been to rest stops that were so beautiful we would consider moving in. Some scenic overlooks are well worth a hike in the nearby woods. Playing in a stream or picking berries has its pleasures.
