I purchased a Dietcalc Nutricounter on EBay. I worked for a week and then, every time I opened the case, all information was deleted. I returned it and the something happened and I returned it. The same thing happened so I did not return it. It has a defect in that the wiring between the two sides if flawed and causes the Dietcalc to lose it the information. If it was not for this defect, it would be a useful tool to control calorie intake and keep a record of your intake. Thomas F. Noonan read full review »