number of nodes mean nothing. what matters to measure performance is how much interconnected your network is and how complex are the relationships you want to extract.
Right. I created a Neo4j db once with millions of nodes and relationships. Individual queries were very performant for all of my access patterns. Where it failed was with queries/sec. Throw more users at it, and it slowed to a crawl. Yes, read replicas are an option, but I was really discouraged with Neo4j performance with more than a few users.
