For the price of these tiles (when on sale), I can't fathom a better deal. They look great!
A couple of things to keep in mind though. When wet, they no longer look dark gray... true colors come out of stone. Sealing will do this to some degree as well. We used a wet-look sealer and still like it a lot. Just don't bank on maintaining the dark gray (dry) look when installing. Lastly, the 12x12 pieces are very flimsy due to separate pieces on mesh, so I'd recommend laying them down with two people. This allows them to sit more evenly. My contractor learned this the hard way, when he laid many by himself that needed to be redone due to individual stones angling unevenly into the mortar.