You should be able to try Guerlain Vetiver at the Guerlain counter of most larger department stores (that is, assuming you are in the US and live near a large mall with a big department store with a Guerlain counter ). I find them to be close, but Grey Vetiver has more citrus, which makes it more "clean and modern." The Guerlain has a little more going on with the spices and tobacco. My wife much prefers the Tom Ford (which has better performance, IMO-- the Tom Ford is an EDP? and I own the Guerlain EDT), but I like them both and can justify owning both of them. My wife once said the Guerlain "smells like vomit" and then said it "smells like an old man." I disagree completely and love both.