Keeping track of what your team has been working on, or having problems with is priceless. Impossible to have this otherwise.
Still doesn't fully replace daily standups, or at least a get-together to catch-up.
Good product, I like how it integrates seamlessly with Slack. The summary and how it's displayed inside a channel is what I like the most. Started using it at my team in order to complement our daily standup, and as an attempt to have them sooner in the morning.