I've been using Craft for some personal projects and have really enjoyed it. They've just released 'story maps' which I've played around a bit with. Definitely worth taking for a spin. It also has a pretty deep integration with JIRA which makes things easier for teams that are on Atlassian products. I'd love to see a nice Slack integration.

Anyone know how this compares to something like ProductBoard? I'm surprised they won't let me sign up from my phone. You expect me to remember you enough to find you again when I get to my laptop? That's asking for low conversion rates. Just let me enter an email address and send me a reminder.