I just applied this for a client and here's the strange thing. He was already booked under a 30% off code, but when the CM applied the pin code, she was surprised to see that while it was also 30% off, it saved him around $40 per night over the old code. She tried to figure out what was going on but couldn't. So even if you're booked under a good discount, if you get this, check it out.