Before hitting the road for the 2nd leg of our trip, I took the van out to test its capability in snow (this was our first snow of the season). This particular snow was wet, heavy, and slick. I took it out of my in-laws' neighborhood, then back in. The route back took me up a rather steep hill, which had this packed, and snot-slick snow covering it. While I was climbing the hill, I turned off TC by pressing the button. The tires immediately began to slip and I stopped moving forward. I feathered the gas, as one should do, but wasn't able to get the van moving up the hill. I pressed the TC button again, enabling it, and the van started going up the hill again.
That sold me on TC as a feature.
Chris