My wife and I have used this for the last six months to track our babys diapers and bottles. The one shining feature is the ability to sync between phones.
That doesnt make up for the terrible input controls. See, every time you input a bottle youre presented with a scroll wheel control. This is fine if youre tracking in oz, I suppose, but we track in ml. There are two wheels, one for the number and one for ml or oz. We have to pick ml every time because there no way to set a default, and if you accidentally bump the wrong spot on the control it switches back to oz and you have to re-scroll all the way from zero to 180 or whatever. Super annoying. A number pad would be so much easier to use.
This app also lacks any sort of reasonable reporting or export. The most you can see is a day at one time and there is no way to see, for example, a graph of total eaten by day over the past week. Theres no way to get a spreadsheet of the data either, so even if you wanted to make a graph in excel its impossible.
Oh, and in a recent version they added ads that cover the input control sometimes but not always. Extremely annoying at 2am.