Become shorter

Well, actually I think you would be ok with either but maybe better off with the Sit and Climb as you can adjust the seat height for your comfort level and leg length. I find it very easy to use and very comfortable for the most part (you could be sitting in a La-Z-Boy and it would be a little painful after 8 hours[:-]) contrary to what most say. All I can tell you is I really like mine. Took a little while to get used to but now I wouldn't use anything else....