I can't tell you how good the module works in terms of results. It does provide the info Google needs. It is a different question if Google shows this info or not, when and how. But it does work for me and starts showing results
https://www.google.com/#q=system+messages+cfl+systems
https://www.google.com/#q=cfl+systems
Google started with JSON-LD some time ago, I believe like 2 years ago. It was for events and recipes at first but now they are moving to it for all structured data.
Anyway - it is another way to go to about rich snippets and I believe sooner than later this will be not just the recommended but the preferred format to use and play bigger roll.