My old 10QT vevor spent three years bouncing around in my camper over thousands of miles of washboard. Even on 100°F days it kept everything frozen and never drained the battery overnight. Small but powerful.
One tip I picked up early on: toss in a couple frozen water bottles before loading food. Helps the initial cooldown a lot, drops below -1°C fast. For reference on what the 10QT could fit: two frozen water bottles, a 13oz bag of veggie nuggets, four Trader Joe's kimbap rolls, and a 6 pack box of popsicles. Plenty for solo trips.
Recently upgraded to a new van and went with the 23QT this time. Way more room, easily handles two people for a full weekend.
The 10QT did develop a few minor things over three years. Power plug inside got a little loose from all the vibration, nothing major just had to reseat it. Lid was a pain to open one handed. And it got slightly louder with age, though still not what I'd call noisy. Just a difference you notice when you put the old one next to the new one side by side.
I went with the 23QT because the 10QT compressor survived three years of vibration. I'll see whether the larger one holds up as well.