[RealityVoid]

And ease of use, IMHO. That's a bit one with these kind of things. I will admit not having used tinc but I imagine it's not as polished.

Polish costs effort and money and it also really truly saves time and makes for a better product. So that matters.

[mikepurvis]

It definitely matters. I used tinc extensively at a prior gig, and it not having a story for its own key distribution was exceedingly painful.