Terrible product - you need 15 attempts to do full measurement

Im absolutely disappointed with this scale. It's the worst spent 120 dollars in my life. It takes over 10 minutes to have the full measurement because it requires from 10-15 attempts. In some of them the body composition measurement is not done, in others (in majority) the heat rate is inconclusive, in others it is not able to measure the nerve system. After 15 tries, finally you have all the 3 parameters. The scale is clean, I even make my feet wet. Does not help at all. Of course it has everything enabled any I stand on it as described in the manual. How is that even possible? DO you even test these products? I want my money back, and will never buy anything from you again.