Update: we finished the road trip mentioned above. Had to travel from Tucson Arizona up to Winslow. Stopped to visit with friends in Sedona along the way. The weather forecast was grim -- huge winter storm rolling in -- and they begged us to get moving before the roads got too bad. We dawdled a little longer than we should have, and we soon got caught by the snowstorm. Cars were literally sliding off the road and spinning out in front of us. At one point, we were stopped because a car in the oncoming lane had spun out into our lane. We waited for him to get straightened out, and another car passed him and slid off into the ditch in front of us. If I were traveling alone, I would have stopped, but I was just traveling on all-season tires with no chains and there were police cars all over the place helping stranded motorists. Through all the mayhem, the Tribeca sailed right through. It was like a mountain goat. Then we grabbed a U-Haul trailer in Winslow for an oversized item. We drove to California, then loaded up the trailer with some really heavy treasures (loaded rolling toolbox, furniture, etc) and drove back home to Seattle.
Once on the trip, I was parked next to a Ford Excursion. Made the Tribeca look like a Justy in comparison.

Pretty sure the Tribeca is the smallest 7-passenger crossover, but its size has been "just right" for our family.
The vehicle has been comfortable and utterly reliable. In retrospect, maybe I should have found one with the dark interior (who puts a nearly white interior in a car that's designed for families???)