You called it right, flu!!
I have not read about their card interest rate, annual fees, ability to cash out, etc.

But on big purchases means a ~8% return vs. a 4% cash back on current credit card.. still a better deal. However- only at that store. So you have to structure your purchase and not carry a credit.

Today we’re introducing the B&H Payboo credit card*. Use Payboo and save the tax — you pay the tax, and we pay you back instantly! When you make any taxable purchase at B&H with Payboo, you receive an immediate, instant reward equal to the sales tax you paid. And at B&H, instant means instant — no expiring points, credits, or coupons to worry about. It’s that simple. (Note: B&H will collect and remit state sales tax in accordance with state sales tax laws and regulations.)