Great affordable replacement for D-Ace
Live in Utah and spend a lot of time climbing, my bike came with Dura-Ace and I just couldn't bring myself to dish out the cash for an 11-28 Dura-Ace cassette. Really negligible weight difference and way cheaper. My last Ultegra cassette went 3 years commuting and was still fine when I sold my old bike. Best value in cassettes, unless you race for a living this is the one.