It`s fast, this balance (if one may call it so) to put into operation. The supplied batteries insert - select units - Set one or more people - that's done in a few minutes. With the illustrated directions for use, the device is almost a no-brainer. This "body composition monitor" is much smaller than a normal bathroom scales, but that's probably not just so, so that the device is nice and compact. I suspect that it has something to do with bringing the bare soles with the four electrodes in contact. For me at least (shoe size 46) does the measurement without any error messages at first, simply because her toes and heels do not lie. In our Salter 9111 SV3R body analyzer scale I often took three or four batches, until they indicated me measurement results. The Salter was after eight months of its measurement services completely and only showed the weight. You to this "body composition monitor" is also that the measurement results are not only displayed once shortly, but until automatic shutdown (3 minutes) are alternately displayed. The display is easy to read, even in dim light. If this equipment from Omron is more durable than our old Salter scale remains to be seen. In the meantime I am very satisfied, especially as the measurement results do not differ significantly from those in the gym, where devices are calibrated professional. My conclusion: If you want to know more (or do I have for medical reasons) as the body weight, is supplied here at a reasonable price with BMI and body fat analysis. Strong buy recommendation.