Quiet, but Powerful
Your review: I have all three sizes of Vornado fans. The large fan is by far the quietest and, at low speed, moves the greatest volume of air. It really takes up no more space than the medium model. A great feature is the ability to circulate air from the ceiling to the floor when the fan is laid on its back.
Pros: Quiet, moves a large volume of air at low speeds, convenient controls- no knobs, and turns onto its back to circulate air from ceiling to floor in cold weather. I have only had one Vornado appliance failure. The company took care of the defect by replacing the appliance quickly with no hassle.
Cons: Cost? Vornado fans and heaters have always cost more, but have delivered quality for that added cost.