[iDemonix]

I'm actually at a large-ish enterprise that needs a new knowledge system ASAP. I wouldn't really consider Shelf as I can't self-host (security concerns, BCP concerns etc), and even if I were to pay for something cloud hosted, Confluence looks more professional.

[tfjaeckel]

May I ask what makes Confluence look more professional from your perspective?

Like I mentioned somewhere else, I actually like using Confluence depending on the use case. It tends to require much more attention in making sure things stay organized and well structured. Shelf has this built-in by being more opinionated (for better or worse, depending on what you need).