We took our Chevy Traverse on vacation. We drove from Connecticut to Florida. Both our small children sat in the 2nd row. There was plenty of room for them, as well as our luggage. We stored our luggage by placing the third row down and there was plenty of room for everything, including all the souvenirs we purchased at Disney World. The Traverse handled very well through all different climates, altitudes and traffic conditions. We mostly drove during the night on cruise control with the A/C cracked up and we averaged 24 mpg, during higher mountain conditions we averaged 22-23 mpg. . If you need to tow a boat, consider the Tahoe,otherwise the Traverse with the Tow Package is the way to go.
Having a usable third row seat and the 6000 lbs towing capacity. The Onstar is great, we used it on vacation constantly. I would not buy any vehicle without it ever again.