Join Date: Feb 2003
Location: Alexandria, VA - DCA
Programs: BA Gold, American Airlines, Marriott Plat, Hilton Diamond, IHG Diamond
Posts: 5,071
I can't imagine doing the frequent flier award/mileage thing without access to the KVS Availability tool. IMO, it's worth the $ for the Diamond level and has saved me counless hours and hours of calling in, hoping for a good agent that's willing to search, etc etc etc. And don't leave out the time it takes to re-coordinate schedules with friends/family when I do find open inventory for award seats.
I recently booked award travel for this fall and the time on KVS + the time to book on US once I found what I wanted took about 20 minutes total. That's including time for friends to confirm that the dates I found worked on their calendars as well...