My experience with using MongoDB for great science. - NoSQL is, after all, in many cases a playground for people who want to try out how databases actually work. With many of these projects, I already wonder what possessed them when they built it. I'd rather rely on solid and proven tools like PostgreSQL and SQLite. And if a NoSQL database, then better one that has been in productive use in larger installations for a longer time. Cassandra comes to mind, for example.