I like that it's web app so anyone can access their schedule at anytime from anywhere! This is great for remote workers who are not in one central location all day long but want some flexibility during peak hours or when they need more than 8 hrs of sleep each night (or any other reason).
The interface could be improved by adding features such as creating shifts with multiple people working together rather then just scheduling 1 person per hour; however this has been requested before & will most likely come eventually if there was enough demand/interest among users. We use zoomshift every single week because we have many different locations across town which makes managing our team difficult without having everyone available 24hrs / 7days through out the month.