I have limited experience driving in the snow with the JX. When I have been in snowing conditions, I've put it in snow mode, which basically keeps you from applying too much throttle. It also cuts out some of the nanny features like cruise control. The car has handled ok, but I haven't hit heavy snow yet.
Since the owner's manual states not to use tire chains, I had difficulty finding some that fit, but finally did obtain a pair at Les Schwab tires. I just didn't want to end up on a highway like I90 over the Snoqualime Pass and get ticketed for not having chains. If I ever have to use them, I will be driving very cautiously since there isn't much space between the tires and fenders.
I've seen several postings from our Canadian members who have stated they are using snow tires (Bridgestone BLIZZAK) since chains are not allowed. Honestly, I don't think the car would perform as well as a Land Rover, BMW X5 or Mercedes ML. I'd still rather have the capability of the AWD anyway. Just drive with caution. Too many people who drive AWD or 4WD cars drive way too fast for snowy conditions.
I'd still like to see what others are experiencing now since the car has been out for a few years.