Best for connecting user feedback and product features. I love the intercom & trello integration!
We love using them for our product, never found anything similar.
We've been using productboard to build our MVP and it helped us to get everybody on the team on board with what we're building and kept us focused. I love that productboard helped us also gather feedback from different sources (Intercom, emails and various conversations) so now we're processing the user feedback and planning our next product improvements - all in one tool. That's just the best!