Paver Lights

So I have seen paver lights in catalogs, but being highly skeptical, I haven’t been inclined to think much of it. But I see that International Lighting Design Firm of the Year Winner. Light+Design in London has used them to what appears to be great success in this public project. Now this changes things a bit. I am on the hunt for good quality paver lights. Do you know of any? Have you used them? Doesn’t this look great?