I just completed a round trip of 1400 miles to visit my three sisters. I was worried about if I would be able to do the driving all on my own, but, as I am just now 70 I felt I was still young enough to do the trip. I actually made it fine. I was able to do the 12 hour drive in 14 hours with gas and rest stops, and felt ok when I arrived. Also made the trip back in one shot of 14 hours. I don't know how many times I can do this on my own, but it will be a sad day when I can't make the trip to see my sisters. So far I feel like I'm doing ok. I hope that lasts a bit.