I'm no longer interested in any competitive levels of fitness (I gave that up decades ago!) So my primary interest is to find a level of activity that I will actually manage on a regular basis that will combat joint stiffness and maintain enough muscular tone to keep me comfortably mobile. The fact that this folds away easily is very helpful, and I can pull it into position and do 10/15 minutes with very little fuss. I'm hoping that will be an easy daily commitment to make! I'm just short of 6ft and the length is adequate, but I can imagine that for a 6'1" user you might be up against the backstop, though if you lean back at the end of your stroke you will probably find the seat pivots slightly forward and doesn't hit the stop. The resistance is moderate, which suits my aims, but if you wanted more to pull against you need a different type of machine. Assembly was fairly straightforward and took about half an hour. Overall, for the money I'm very pleased.