The SAP Query family of reporting tools is available for free within all standard SAP installations.
You should use the standard query area for your queries.
You should create your query groups live in your production environment.
You should create InfoSets in your development client and test them in a test or quality assurance client before making them available in your live production client.
Trained users should create queries in your live production client.
Use of all three Query tools at the same time may yield inconsistent data, so an organization should commit to a reporting tool and use it exclusively.