Checked Amazon & same thing, lots of really "off" reviews. Okay if you want it for weight measurement but even that was off by about 10 lbs (even taking into account clothes). I've used 2 differently calibrated scales (even at a recent doc's visit) and both were similar (145 vs 147 for another trainer calibrated medical scale), and the Tanita had me at 158.8 lbs). Okay, had a pair of jeans on & a sweatshirt but the difference was pretty drastic to other "tuned" scales. Oh, the bio-whatever body fat number was really off compared to what a trained trainer with calipers & then another body fat % test (infrared) had measured--it was DOUBLE. So either I've gained a lot of weight & fat since Kona, despite being likely at one of my lowest body fat %'s in my life recently, or this Tanita Ironman Scale is way off. Either way, the info online convinced me not to purchase one of these, as well as what I believe to be some goofy numbers from a technology that isn't quite accurate. Given this info, my hope was to use it for additional info like hydration levels--but would this even be accurate? Who knows... **I know, check to see if the pee color is clear, but was looking for a more accurate metric/number that hopefully the scale would be able to provide.