We purchased the Highlander 6 years ago after much research. We moved to the city so this is our only car which does it all. It was an excellent buy and have not had a major problem, worst thing to happen was heater switch had to be repaired for $350. Highly recommend. We have a 2WD V6 which we both feel handles great and gets 20MPG in city and 24 on road with 87 octane. Drives just like a car. We buy cars that last and drive them till they die. Our next car will be a Hybrid Highlander but it may be a while before this one quits!
We like the comfortable adjustable seats and the armrests. Rear seats are also comfortable. We like remote adjustable rear view mirrors, good safety ratings, excellent reliability, good visibility, great cargo space.
Replace full size spare with donut to give more space in rear storage area. Redesign front center console, poor present design. Improve rear center console with cup holder. Improve rear seat ventilation (possibly include controls). Improve lumbar support in both front seats.