After we wrote a letter complaining about Marriot's abysmal service and condition on our wedding night, they thought it would be appropriate to send us a voucher for a free night at the exact same hotel. Since the Marriott in question is less than 1 mile from our house, the voucher is basically worthless. Who wants to stay in a hotel down the street? (Especially one with bad memories).
The only reason we had a room in the first place was because it was our wedding night. My wife and I have decided to send the voucher back with a cc to head of Marriott hotels.