I bought the largest size a few months ago and wear it over long periods. It's very comfortable. At first it can be a bit tricky to put on, being right handed it would be easier if the screw was on the other side. Once on the initial tugging can cause slight pulling pain so I sit on the sofa for 20 mins, after which walking around is no problem. The largest size is very heavy but if like to try out a bigger size of it becomes available in (hint hint!).