I like it simple, easy to use interface with intuitive navigation of all features that makes day-to-day work easier for us administrators! There is not much more than what you need in this application but everything works really well together which helps keep things running smoothly without additional software or hardware required by our clients (which sometimes can be an issue).
It's also great how they have managed their community forum so we don't end up needing third party services anymore where there are many problems associated such issues being outdated etc.,.