The ease to use, intuitive interface for new users as well as more experienced ones! This program has helped us grow our business by leaps & bounds!! I can't think about anything we would like better than this product; it's been great from day one. We have not found any issues at all using BOS so far other then maybe having some minor glitches here n there but those are easily fixed without too much hassle (at least what i've noticed). It does exactly everything you could ask out off such service/product - nothing comes even close when compared side by side. I like the ease of use, the layout of the program, it's intuitive and has all the features we need to run our business. I dislike how they make you pay for upgrades, and how long it takes to get them installed. They should be more upfront about what they will charge you for their products. I have been using this program since 2010, and still love it. It makes it easy to manage subscriptions, print issues, billing clients, and keep track of my orders.