Based on this recently reported problem https://jira.magnolia-cms.com/browse/MGNLGQL-81, the GraphQL feature may still have some simple bugs. 

Try using all possible properties of Assets and of the sample "bookcase" demo project (and maybe the tourGuides demo project)

Try the most obvious filtering and sorting options.

This will help ensure that we don't launch with any easily-detectable bugs.

We can time box this.