I have MS and as it has progressed to the point where my cane no longer allows me to enjoy outdoor walking of any distance (e.g., half a mile, or more) I began looking for lightweight assists that would allow me to once again enjoy outdoor walks. The Drive Nitro carbon fiber rollator has met my needs, rolling easily on outdoor terrains. It is compact when folded and I can easily lift it into trunk of my car. The seat with its backrest is comfortable and an important feature. My only wish would be for it to come in a color other than black. Also, it would be good if the detachable cane holder could be better designed, i.e., it keeps popping off, though that is a very minor problem. All in all, though expensive, it is well worth it for me.