I have an Oreck XL Plus vaccum that is approx. 3 years old. I have high pile carpet throughout my apartment. It is very hard to push the vaccum over the carpet. It is hard enough to push that my wife can't use it, and I have to do the vaccuming, and it is even hard for me. We thought that maybe the vaccum was worn out. So 6 months ago we purchased another Oreck XL Plus and we still have the same problem.
You cannot use the Oreck on high pile carpets. It works great in hotels were the pile is very short. I'm sitting here with $600 worth of Oreck vaccums ($300 each), and our expierence with the Oreck vaccum is terrible.
Do not purchase an Oreck Vaccum if your carpets have a high pile or is considered to be plush carpeting.