The airwalker is a great product for low-impact exercising indoors. It assembles and stores easily. (It will not lean comfortably against the wall when folded up, but it should fit under a non-divan type bed, or it can be strapped to a clothes rail in a closet.) It is virtually silent when working properly (although you may have to use some WD40 occasionally on the joints as they tend to squeak), so you can exercise whilst listening to audio books or music, or whilst watching TV or a DVD. You are always in control: you can glide very gently and slowly, or bend your knees slightly or lean slightly forward or backward for a variety of different "glides". You can use the handles just for balance, or not at all, or quite vigorously for a virtual "cross-country skiing" type workout. TIP: If you are collecting this product, make sure it will fit in your vehicle!