Has anyone ever tiled their floor with bricks?

Question:I went to a new dentist today and they ahd the coolest tiled floor of rustic, smooth bricks. It was awesome...it had really huge grout line like almost an inch wide. Anyway, if you have ever done this on the FLOOR...how does it compare on a difficulty scale to tiling with square tiles?
By the way, these bricks are made for flooring...really smooth.

Answers:
I've never layed the flooring myself but I imagine it would be around the same as laying glass tiles or ceramic tiling on your floors. I personally love the layout of it and when I get my house built thats what i plan to do :D