Very satisfied up at this scale that I was perfectly useful for nearly four years and for many flights, but broke down, however, of course as you step into most needed. Early problems: a very great difficulty of starting, then gradually inability to operate and despite several new replacement battery tests (the LED lighting still worked fine). My particular case: lives in Asia since 3 years in humid conditions (80% to 95% of moisture for several months / year). Obviously the Power button on the weighing function has gradually become faulty, possibly due to oxidation of the contacts. This product typically is a great product, but probably is not designed for the most demanding climatic environments cétait just my stone lédifice for the manufacturer reinforces the robustness of this product