Productstash - Agile Product Roadmaps alternatives

I only found Roadmap in the last week, but I've instantly seen it's potential, and have really enjoyed getting set up and starting to build out a backlog.

I could see this being used for a variety of things, not just technology product management. I'm setting up a new impact studio, and we often take a participatory approach to developing ideas, so this could work as a really neat solution for us to centralise research and ideas.