It's been a few years since I last rented one, and the newer models I suspect have gone a long ways better. Curvy roads I never found to be that bad. I don't really remember being that unhappy with the suspension on highways, my only real gripe on highways was the short wheel base, which to me made it feel like it was harder to keep the car in a straight line. I see a lot of 4 door wrangler's these days in rental car lots, and I suspect that the longer length there helps with that a fair amount.

Realistically though, I'm only choosing a wrangler as a rental for one particular reason, and it has nothing to do with how it handles on paved roads. There's too many better cars to choose from, that outside of the real uses for a wrangler, or wanting something that you can turn into a convertible, I'd pick something else. And even if I theoretically might be doing something I'm not supposed to, in a lot of cases, I'd pick a Grand Cherokee over the Wrangler. It's a far more comfortable vehicle, and is more than capable enough for anything I'd ever see before I'd chicken out.

Up until relatively recently when Wrangler's have gotten more popular, I always felt it was kinda weird for them to be in a rental car fleet, especially in places like Hawaii. You know every operator in Hawaii knows that a fair number of those Wranglers were going to be operated in violation of the rules. They were expensive enough that even getting one instead of a convertible didn't make sense if you wanted a top-down experience. Nowadays it can make more sense because they're a better car than they used to be, and there are enough people outside of the traditional "jeep" demographic of the time that find them desirable.