The interface of cardboardit makes it very easy for all teams involved! No need for additional software or training when starting new projects. It can be used by non technical people too which I liked most about this platform. Nothing negative at least so far but there were some bugs while using this tool. Try out its free version first for 2 weeks before buying their subscription plan otherwise it will cost quite amount (around $5 per month). We mainly solved our customer support issue where we could post an update/question quickly without disturbing other employees who might already working hard on similar issues. This also helped us create more detailed product roadmaps than just posting them as blog posts.