It can work quite well, especially when combined with other tools that leverage the same kind of model, such as, say, Carlo Strozzi's NoSQL (his use of the term

It can work quite well, especially when combined with other tools that leverage the same kind of model, such as, say, Carlo Strozzi's NoSQL (his use of the term predates and is totally different from what we think of today as NoSQL), or even things like text/cli-based accounting systems. The modularity and focus on each thing doing one specific thing makes maintenance a breeze, assuming you're familiar with the tools.