Coshx, a technology consulting firm, uses Neo4j to improve performance in client projects, particularly when dealing with database JOINs. They chose Neo4j due to its native graph model, which allows for more expressive querying and reduces the need for JOINs. The company has seen surprising results from Neo4j, including improved performance and better connected data analysis. If they were to start new projects again, Coshx would plan ahead, invest time in whiteboarding, and reach out to the community sooner for help with potential issues. Looking forward, graph databases like Neo4j are expected to make it easier to tackle difficult engineering problems by providing a visual interface to explore data connections.