The ability for clients (both internal & external) access their information in one place was very helpful! I wish there were more options available when it came time to create an account/login or reset password as well as being able to see what type of device they are using so that we can adjust accordingly with our security measures at work.
It's also nice having all your documents stored under 1 login rather than several different logins you need just because each department has separate document storage areas.