I bought the most recent scale for a gift, but bought one earlier this year for my own travel to China.  The scale is simple and very accurate.  I was on a group trip and my scale was passed person to person down a line of over 30 people to check the weight of all of our "heavy shopper" bags.  We were all extremely close to the airline official weight and the scale was a big hit and saved all of us excess baggage charges.