They're nice to have with the 4.0L engine, 3.73 gears and Dana44 rear axle. This is a vehicle with no anti-lock brakes, traction control, or stability control, so get good tires. Personally I've had good luck with 30” BFG T/A KO's in the winter. Don't use 4WD unless you can't see the road or you're sure it's iced over. Throw some extra weight in the cargo area. In cabin comfort is pretty subjective, but if you can get past the noise level and cinder block suspension, I don't think you'll have a problem with the temperature. Removing ice and snow from the soft top is a breeze, but don't smack the plastic windows while they're cold - they'll shatter. You'll appreciate the AMC door handle design when they ice over (don't bother locking the doors.) Assuming it stops, goes, has heat and maybe a/c, your biggest concern is rust. Extreme rust areas are the brake lines, fuel/evap lines, skid plate, muffler and hangers. Inspect the inside and outside of the frame, and all bracket welds for cracking. Hopefully it doesn't have the original radiator. Read about TJ TUPY heads. Don't let garages replace the axles seals unless they are really leaking, not merely weeping. Read the TJ FAQs on this forum, they're great. Best of luck to you!