My only advice is to make sure that the tires are pumped up hard. Tires also wear on these rollers so don’t use your $50+ race tires.
I’m with you on all this. Since switching to e-motion rollers (~13 years ago now), I’ve had 2 serious injuries that forced me onto stationary trainers for weeks at a time. Pure misery and was so happy when I got back on the rollers.
4 of the last 5 saturday mornings were Zwift century group rides on the rollers (~4 hours). So much better than multiple hours on a stationary trainer and it only gets better as you get more experience on them. Once you are comfortable, it’s very easy to climb out of the saddle, sit up and stretch, pretty much anything you can do riding in a straight line outside. I honestly don’t understand why stationary trainers dominate the market and rollers are on the fringe, but different strokes for different folks and clearly lots of people love their stationary trainers.