The ability for our team members at my local grocery store, as well has other customers that use this service is so easy! I love how it helps us keep track of what we are purchasing while shopping together or even when going home alone (I have used YR's before). It also allows me to view pictures right from within app which makes things easier than ever!! Nothing really but if you don't like something then there isn't much they can do about it since its not theirs either way lol! Make sure your using an up dated version because sometimes features get removed/added over time!! This will help make life simpler by allowing everyone involved access via smartphone / tablet etc.