@CKPeter,
I've been using your service for a few years now, and it continues to prove extremely valuable. Was looking for HND-SFO Japan Airlines first class... Had an alert set up. Nothing. Then 48 hours ago, boom! One seat opened up. I booked it for my wife. The alert kept going, and then boom! The next day, 24 hours ago, one more seat up! I snagged that one for me!
I just wanted to give a big THANKS. Keep up the great work. Your tool has helped make a lot of my vacations very special.