Any experiences with GraphDB's

[AstonJ]

Not exactly a reply to your question, but this thread might contain some posts you might find interesting:

Hot Databases

What’s catching your eye in 2016? Huge fan of Postgres here. Some that are hitting the headlines recently include RethinkDB and ScyllaDB. Also worth mentioning… the database free architecure in Elixir/Erlang What about you? Which DBs do you like? Which have caught your eye recently?