We migrated from a self-hosted irc server to Grove and couldn't be happier. The archive and search are a godsend when you can't be bothered to set up loggers and such yourself. Whenever we're troubleshooting server issues, all the context is already there in the web client for other devs to hop right in and catch up. We post to the API from our fab deploy scripts, and when someone's feeling motivated, we'll be setting up Hubot, as outlined on their blog. https://grove.io/blog/hubot-grove

EDIT: I should also give mention to the great transparency from the team. Leah emailed me in response to feedback/issues multiple times, and they definitely keep up with Twitter chatter.