I like how easy it was for our team members, new hires as well! It's very user friendly; they have made improvements since we started using this software about 2 years ago so now its better than ever!! Nothing in particular but great customer support from their side too. ! We are solving issues of spam mail coming into my inboxes because i am managing emails through gmail which has become almost impossible at times due not having all features enabled or used correctly by users when sending out mass mails etc.....