I've had the same WW bodyfat scale for years.. it's okay. I frankly don't care that it may weigh a pound or two off here and there as I'm not too concerned about the daily crap and only the trend. I agree with others above- the fit of my clothes and the way I look naked are far better indicators of where I'm at. I do like the BF% thing and frankly would LOVE the thing if I could switch off the lbs number and just get the BF reading. It too varies depending on hydration, but it's the number that I'm really more interested in keeping tabs on than anything else. I know I could get just a BF tester, and may (for sanity sake, as the stupid thing can fuck with my mood when I'm particularly PMSy and vulnerable..) In fact, I think I may just go hunt Amazon and get a plain ol BF tester and put the thing away.. I aim for eating well, and maintaining health, not a specific number, but I also aim to stay in the same size range I own.. so that right there is a limit switch, jeans get tight.. the scale won't tell me anything I don't already know..