GraphQL can be a bit of a learning curve, but once familiar becomes an excellent way to understand, query and fetch data from compatible sources.

I have found GraphQL especially useful when working with CMS and e-commerce APIs that support it. I have found it to work best in React based applications, and in particular Gatsby JS.

It is possible for GraphQL to be inefficient when querying, and there are some security concerns to consider, but depending on the scale of usage the tool is largely a positive in my opinion.