Not the best by far!
They constantly find something wrong with receipts even when you review them and there is nothing wrong, the worst part is that they don’t allow you to re-submit them. They only give a chance for 300 points per week and after that they allow you to submit receipts for a drawing which you never ever win, and if they find something wrong with one of the receipts for the 100 points per card, you don’t get the points and get shorted a card the next week, and even though you submitted extra receipts for the drawing that they could use to complete the card they don’t. The absolute icing on the cake though is sometimes you can submit receipts from 10 days ago and others not more than 3 days. There are many better sites out there.