We use it in production, but are migrating away from it for some projects since that data is better suited for a relational DB. Some developers were too quick t

We use it in production, but are migrating away from it for some projects since that data is better suited for a relational DB. Some developers were too quick to jump onto the NoSQL bandwagon a few years ago. For certain uses it's great, once you've wrapped your head around writing map/reduce views. It really shines when you need to provide a read-heavy JSON backend. I've never written views in Erlang (actually, I've opted for higher abstraction and used Coffeescript), but now that I have a little functional programming experience with Haskell, I'd like to try it out.