I could not disagree more. Neo4j has got to be the most intuitive, simplistic database structure on earth. The php client is amazingly optimized, even for super small datasets, it murders sql. The graph visiualizer is beautiful and extremely helpful. I might even argue that it has better documentation than SQL because it's all in one place with instructional videos and tutorials. If you live in silicon valley, you can go to their office for "office hours" and they give you pizza and beer and teach you how to use it. It so simple and easy to use a child could do it.