A full-size SUV works well when its everyday operation suits the jobs you actually give it. Seating flexibility, low-speed control, power delivery, traction settings, and loaded driving all affect whether the extra capacity is useful or cumbersome. Understanding those functions is more valuable than judging the vehicle only by engine output or passenger count.
There is no single operating layout shared by every full-size SUV. Powertrains, transmissions, suspension designs, and drive systems vary. Learn the controls and limits of the specific vehicle, then test the activities that repeat in your week: getting passengers aboard, loading luggage, parking, and making longer trips.