I have the legacy Priceline. Very valuable. Important to keep in mind that if you use the card for ordinary purchases and then redeem for Priceline, your effective net cashback is a good bit higher than you think once you add in the 5x points you’re earning on Priceline and the repeating 10% back.
Buy $10,000 worth of (ordinary) stuff= 20,000 points.
Buy a $300 Priceline express deal= Earn 1500 points.
Redeem your 20k points for the Priceline deal- get 2000 points back.
You’ve now gotten $10300 of stuff and have 3500 points.
Get a $52.50 Priceline reward, earn 265 points, redeem your 3500 points and get another 350 points back for 615 points.
Now get $9.23 in Priceline purchases, earn 50 points, get 61 points back for 111 points, we’ll round that off to $1.50.
You’ve now paid on net $10,000 for 10,363.23. That works out to a whopping 3.63%. (Probably works out to 3.666% repeating) Now this is exaggerating a little- getting those tail end 10% redemptions used in any reasonable amount of time requires sufficient Priceline spending and multiple cycles of redemption. But even just looking at what you have after one redemption it’s fair to say you’re netting over 3.5% on your original purchases.
It’s especially good when express deals are very often the best possible deal available. Throw in the Upromise portal or similar dishing up 5-8%+ cash back on top, and it’s hard to do better on a redemption.