Works well. Very nice that you can track two users. Only criticism is that it isn't clear --or it wasn't clear to me -- that the cuff plugs in on the left and not the right. The right side is for an adapter to use house current instead of battery power.
Great company to deal with
It is great works like a charm
Have used other brands but they shrank after washing and stitching cane apart . These seem to fit a lot better and held up better. I would purchase them again when needed.