When it comes to towing I don't have a high tolerance for any towing anomalies. I have friends who are much more acceptable of things being a little squirrely. So take this in account for my response. Last summer we drove all over the state of Colorado, went over five or so passes and alot of off interstate driving.
The interstates are not bad and there are plenty of slow drivers to tuck behind. The side roads can be a diffrent story. For the most part they are not a problem but keeping up with posted speed on them I found to be challenging and over time it began to wear on me. I would pull over when I could but some of the roads did not offer many spots for that. All in all I did not enjoy the tow as much as I would of liked to but it was a new trailer and I don't think I had it dialed in all the way. We are heading back again this summer and I have tweaked the rig a bit since that time so we will see.
I suggest researching the routes you plan on taking with google maps and road view so you can see what you will encounter
