I really encourage everyone to just give this DB a spin, with homebrew or their Ubuntu PPA it is a dead simple install process. I guarantee that the first touch experience will be among the best DB experiences you've had. Their built-in web UI is so incredibly polished and handy.

Also, a nice +1 for RethinkDB is when I was importing way too much data for the (accidentally) way too small EC2 instance, the OOM killer kept knocking off RethinkDB but not a single doc had been corrupted. I've done similar stupid things with other DB's and... well, data was lost.

We're still working through it for analytics, I hope to do a write up sometime soon.