Warning! Will take your money!
Warning! Do NOT use HotelsOne. I mistakenly booked on their website; it was made to mimic the host hotel site. Their prices were $1,000 more than booking direct. I called immediately to cancel booking and although the host hotel confirmed they will honor the cancellation with full refund; HotelsOne denied my request for cancellation. Be aware of this scam. They claim they are unable to reach someone at the hotel to waste time and lock you out of the 24 hour grace period for cancellation.