It's very easy for users that are not familiarized with ERP systems like B1 or Ariba to use this system without any problems.
The support team can be reached by phone 24/7 so there isn't much downtime between calls which makes using it more productive than if you had to wait days inbetween responses. Nothing really as I haven’t used anything else besides ARIBA but from what everyone says about their experience they do have some great features. We were able to integrate our accounting processes into one place instead of having multiple spreadsheets.