Pros - beautiful natural, textured and varied stone, and REALLY inexpensive for a high-end look.  Easy to cut with a tile saw.

Cons - fragile (I had some breakage but cut those tiles for my partial tiles against a wall) and inconsistent thickness means you have to vary to amount of mortar under some tiles.  Rough surface holds onto grout—treat it with a sealer before grouting but you’ll still have to scrub off the haze.

Bottom line — inexpensive choice for a beautiful look but not the easiest to work with.