It is very easy for me as an administrator, so I can quickly move from one area (such as finances) to another without having to go back through each screen multiple times! The interface makes it quite difficult at first glance to navigate between pages within their site; however once you become familiarized there are no problems using this program overall.
If you want something that allows centralized access across all departments - check out Chruchtools!! We use our website mainly during worship services but also have other staff who need quick information about what we're doing throughout various events/meetings etc.