The user interface is easy to navigate with all of my clients' information available at our fingertips! I love that you can customize each client's page so it looks just like their own website if they want!! It also helps me keep track as well because everything stays organized in one place instead having multiple spreadsheets which could get confusing sometimes when trying figure out where something was last year versus this years numbers/data etc..
Definitely recommend using OmniContests. They have been amazing from day 1 helping us set up an account & getting started right away creating custom pages (as requested) within minutes after submitting payment through them via Stripe - Amazing support team too. !