This Rug Doctor machine is definitely a heavy duty piece of equipment. It is convenient to have access to it at any time, rather than having to rent one. I have not used the wand yet. I hope the wand and nozzle are good for the carpet on the stairs. The machine, itself, is heavy and does not maneuver well into tight spaces. I would suggest clearing away as much furniture as possible. Also, it shoots quite a bit of water into the carpet, so the tank needs to be filled more often than I thought it would. However, the results were very good and the carpet looks much better after being cleaned with the Rug Doctor. The cleaning solutions that come with the machine are very effective. Overall, this carpet cleaner did a much better job than the upright model with rotating brushes I had used previously. If the Rug Doctor lasts for the full five year warranty period it will be worth the price.