After a short time the balance has not reliably display the weight. An unopened bag of flour (1 kg) was time (probably the exact value) indicated by 950 g, sometimes with 1018 g. Another time, I noticed only by chance that two-thirds of a pound of margarine may not be 100 g. Often they are not turned back to "0". Perhaps an individual case. The format I find very convenient. Will again ordered me a similar here. Complaints without problems, thanks to Amazon.