Ask HN: Slack in my company, tips needed

Working in an industrial company, Management has decided to let us test Slack for a few weeks, as an attempt to improve (implement actually) processes among and between teams. I know the tool will obviously not be the silver bullet to all of our problems. Still, I believe Slack could be the first brick we could build on a new organization. Given, nevertheless, that we don't fk it up from day 1. Since I am also new to Slack, I was wondering if slack users among HN had any advices, from their own exerience, regarding for instance : errors to avoid when first implementing the solution, channel organization, cool bots to use, and to what extent you were satisfied, as a user, of Slack in your company / team.