I put in the wood looking tile on the main level this year withva dark brown grout. Three boys and a Great Pyr and no damage. Stuff gets dropped on it all the time. We went with top of the line tile and everyone that comes in the house cant believe its not real wood. I dont have heated floors but when we run the fireplace the floor really soaks up the heat and retains it for quite awhile. I would definately recommend tile.