I have been using Calvin Klein's Eternity for Men since Long time. I had previously used Calvin and Obsession for Men from CK, but I found a certain distinctive appeal to the clean, fresh scent of Eternity that is never overpowering or intrusive. What I especially like about it is its staying power...many colognes or EDTs lose their "charm" later in the day after application. Of course, the aroma of Eternity weakens in strength on the body from its initial spray, but even its mellowed state is recognizable. Fragrance "layering" using Eternity's Body Moisturizer and Body Powder adds to the experience. There's something to be said about finding a fragrance that works with one's body chemistry, and I know that Eternity is the one for me. The "greens, crisp jasmine, sage, and basil" notes do make a difference, and that is why it continues to be a top CK seller even now in the highly competitive and crowded fragrance market.