Received it quickly and it works well. I noticed if you follow the directions and hold the attachment while taking your weight so you can immediately follow it up with a body comp analysis, the scale doesn't account for the additional weight of the attachment so it will add between 0.6-1.0 lb to your weight. I'm not sure if anyone else has this problem, but the body fat analysis is pretty inconsistent. I weigh myself at the same time every morning and sometimes I'll run the body fat analysis multiple times, it shows a different number every time. I'm not sure how to correct the inconsistency, but I would definitely like to as this was the main reason for purchasing this scale.