Disclaimer: I've been brainwashed by working in "enterprise" environments. I understand that is not necessarily your target audience.
Logging scares me when it is a hosted solution like this. I signed up for the trial (for personal use) and didn't see that configuration option. Maildrops are lots of fun, but dumps of your dev IRC chats? Most regulated environments have retention periods, and after that most communication is considered to be a liability and storage concern (IANL, TINLA). I would say that dev chats are useful for about a few months, max.
A non-hosted solution would be nice, but certainly takes a huge amount of effort to layer on something like that to what you already have.
Is there any open community (i.e. a grove.io instance) to join and chat about your product, get a feel for it? Sounds like a bit of maintenance headache, but probably worth it. I can't really demo it well by myself.
Also, I can't imagine talking to my coworkers like I am accustomed to chatting on IRC <ahem>. That's just a random thought.
Edit: spelling errours