I've used this for a while (about 2-3 months). It is not easy to set any numbers on the screen because it has only adding button when I want to set age and height. When the number exceeds my desirable number, I have no choices; continue adding the number until it reach the maximum and then it will restart to the first number again.
Another problem is that the weight shown when I stand on it is not equal over the time.
If I place the product softly on the floor, I will get one weight.
If I place it on the floor with any bump on the floor (just only small hit), the weight will be less than what I've got at the first time 1 kg. But the higher figure is the right weight so I have to weight myself at least twice to ensure my weight!!