I used it in 2020, the rewards were great then. Nowadays I use credit cards and convert the points to sats buying every month. Amex has 6% on groceries, Costco has 3% on gas and Citi has 2% on everything else and I find that hard to beat... 

 Thanks for the answer. That sounds like the same strategy that @jack mallers uses in his daily spending too. 

 if he's doing that then I feel good haha