Starwood Hotels offers members guaranteed lowest rates. There website says, "If you do find a lower published rate within 24 hours of booking your room, simply submit a Best Rate Guarantee Claim to us and we'll honor the lower rate. We'll also give you an additional 10% discount." Has anyone ever taken advantage of this guarantee? I would like to book the Sheraton Safari for three nights before checking into the Dolphin on our trip coming up on May 2. The official Starwood website lists the Sheraton Safari rates for those dates as $99. I've seen it on discounted travel websites for as low as $79. Just wondering if I should book thru the official...and then hope I can find a better rate within 24 hours. Opinions?