What do you think of stamped concrete? The kind that looks like either cobbles or stones? Has anyone done this before and if yes, do you have a picture? We want to enlarge our patio size but we don't want to pour straight concrete for fear it will look too much like a patch job (because of the odd shape and newly poured, adjoining concrete path on the side). I would be so grateful if someone could post a picture or a website. TIA!!!