I had the pleasure to be invited to speak at All Your Base Conference 2015 about PostgreSQL (of course). The conference gathers together lots of user experience around data management and database products, either in the now classic meaning of the word (I mean relational database management systems here) or the newer set of trade-offs represented by the NoSQL set of tools.
The conference was very nicely organized and ran smoothly, and I got the unique chance to get a back from the trenches story series about people tools of choices and the reason why they do things their way. It has been very enlightning!
If you ever get the chance to attend All Your Base, take my word for it and just go!