I love how easy it was to use! The customer service staff were so helpful with getting me up & going as quickly or slower than we would have liked (due in part by their own fault).
Nothing that stood out but if you are new at this type of software there might be some things for your first time user/employee which can seem confusing initially until they get used too them like what buttons do etc.. We found ourselves using our phone more often then not due just because its easier when working from home versus physically being able to go into work each day - especially since my husband works during normal business hours while i am off most days anyway :).