As someone who moved to Amsterdam to write Haskell (and JavaScript) for Silk, I can confirm that the combination of a beautiful bike-friendly European city, a Haskell backend, and exceedingly cool co-workers makes for a very pleasant working environment.

I'm off on other adventures now, but I have no skepticism about deploying Haskell in production. Yeah, it's still a bit obscure, but if you're looking for smart and eager programmers, Haskell is good bait.