Hi
I used the site after reading about it on HfP.
Firstly - love the clarity of how availability is displayed - great to see all classes and also peak/off peak all at the same time and also how many seats.
I set a few alerts and today I bagged 2 of the recently released Miami CW seats thanks to an alert so really pleased. I checked rewardflightfinder out of interest after receiving the seatspy alert and it was still showing no availability - it does now, but not sure how long that took to update.
Anyway, a big thumbs up from me - thanks!