Geoblock Paving System for Grass covered Fire Lanes

Trine University, formally known as Tri-State University, here in town wants to close off a street. On part of the street they are looking at putting in the Geoblock Porous Pavement System www.geocheminc.com in place of the street so we can still have some access to the building.

After looking at the web site it looks like a pretty good product and a good way to have access around buildings. They have several Fire Departments that did tests and have all approved it for use in their Cities. But since it’s in the best interest of the company to present their product in a good light I was wondering if anyone has first hand experience with it, good or bad?