I like that you can create different segments within one account so if someone has been an inactive customer but then signs up again they will still get their old segment information which makes sense. It doesn't have all features yet (especially when compared against other platforms) however we're working towards adding more features such as dynamic content creation/updates and better mobile integration. We've used maroon to build custom funnels and campaigns around our customers' accounts rather than relying solely on traditional lead nurturing programs.