I like that it's easy to use, has many different features (such as scheduling) so you can have multiple employees using one account which makes things easier if they're all in your store at once! It also allows me to see what my team members are working on and when their next shift will be scheduled without having them log into individual accounts.
The interface could look better but not much we can do about this since its free software. We've been able to reduce our time spent managing each employee schedule by over 50%.