I use it but since I eat so few items with barcodes, it's a little limited. It can be difficult to find an entry for just a plain old tomato, for example. I use it to track things and I completely ignore all the suggestions, the little red warnings that I've eaten too much fat or not enough carbs and all that jazz. Plus the whole "if you ate this way every day you'd weigh XXX in YYY weeks" is laughable. It doesn't seem to work that way for me, the whole CICO thing.
Female, 5'3", 50, Max squat: 202.5lbs. Max deadlift: 225 x 3.