Bests & Worsts Reviews from Amazon

I don't do reviews often, but this product (and/or a similar model) have taken some knocks that my experience contradicts. First off, I think expectations need to be realistic if you are going to buy any kind of scale or monitor. 1) Weight: No two scales read the same. They may be darn close, but rarely the same. What should be expected is that the scale always reads the same weight over time. I have a dumbbell that says it's 10 lbs and I have seen three scales say it's anywhere from 9.5 to 10.3 lbs. So you can demand consistency, but realistically for most of us absolute accuracy is just not practical. 2) Body Fat or Composition: Unless you can find (and pay for) a DEXA (Dual Energy X-Ray) or Hydrostatic (full immersion weighing) test this number is totally subjective. A while back I had two physical therapist/trainers that work in a medical rehab/training facility check my composition using the calipers method ten minutes apart. The results were 29% and 34%. They were not surprised, said they were usually within 2%-3% of each other. I don't want it to sound like I am lowering the bar here, just trying to be realistic. So, what about the Omron HBF-500? As for weight, my HBF-500 has said from day one that my "10lb" dumbbell is 9.6 lbs (it's mate is always 9.7). Who's right, Omron or Weider? No idea. So who cares if the scale is off by 4% or if that dumbbell is really 4% lighter than advertised? The fact is that is is consistent, and if it says that on the day I got it I weighed 296 and I now weight 275, it is that 26lb difference that is important. Same thing for composition. I feel it is the change over time that is important, not the absolute accuracy. What I have found is that I have to be consistent in using the device. Lay off the H2O for a day and the number changes, hop on the scale after a hot shower, the number changes. Same for after a meal or exercise. I have has the best results using it once a week, at the same time of the day (for me, first thing in the morning on Mondays) before I eat and shower. Functions/Usability: 1) Read the manual. It's not great, but after I used the thing two or three times it became simpler. 2) The memory/user functions are nice, but to be honest I think the biggest advantage of the user function is that I do not have to re-enter my age, sex, etc.. each time. Use the enclosed for or write down the results, I'm a geek so trust me when I say it's just simpler than the memory functions. Overall I think it is a great tool for measuring changes, if not absolute numbers. And if you think about it, the changes are what matters, either as a warning that you are making progress in a direction you do not want to go, or as a reinforcement that you are doing things right and seeing results. If accuracy is a big deal for you, pay for the professional tests, use the device at home and note the difference. The apply that correction to the measurements you get at home. For me, the $400 -$600 cost of the tests for one shot vs. the cost of the HBF-500 to use whenever I like answered the absolute accuracy question.