The best thing about preview app is that it allows us to easily communicate with our customers as they can see everything we are doing which makes things easier than ever. It also helps me keep track of all my appointments at once without having to constantly check different email accounts or apps. There isn't anything I dislike about this software but if there was something I would like to see improved then maybe it could be better communication with other people who aren't using preview app. If you need an easy way to organize yourself and others with keeping up with your schedule then preview app will help make sure every detail gets taken care of.