I looked into using their Enterprise product for my employer about 6 months ago. It seemed to be a nice product but was shockingly expensive compared to its counterparts in the space. Also, when they say "enterprise" they meant it. They are targeting large companies with 10s of thousands of employees; our 300 user company was really on the low side. Of course this is a pretty new product and this type of thing tells me that it's not quite mature yet and probably difficult to support.

this is very intriguing. Right now we use Confluence for something in this direction. I'd much rather us have a private stack overflow page for a subset of what we do on Confluence.

(Edit) This appears to be for non-public stuff only, though. So an internal stackoverflow.

Still no solution for a company wanting to host a public stackoverflow instance for some product.

Ah, yes, right, sorry. I understand now what you were after. Agree there would have been (is?) an interesting potential there too.