Hi Chris -- the app looks great, nice work. Aesthetically similar to Slack, for sure, but there are some obvious differences as well.

Curious if you talk more about your target market? This feels geared toward smaller start-up like orgs that may already have something similar/have no legacy tie-ups.

However, have you thought about teams in larger enterprises that are likely to be hooked into the use of Microsoft Word/Excel, and especially Outlook, and may use something like Skype for internal chat? Think there are numerous folks (like me) who are on top of newer/interesting tech but have to fight hard to move people away from their habits.

Further example: would you build or allow access to legacy Exchange servers?