How many of you use a dining reward service? Are you satisfied?

I use OpenTable, which allows me to reserve spots at a variety of restaurants and collect points for doing so. Points can eventually be redeemed for a gift card, I believe. I generally use it once or twice per year, for special occasions. It's a good service.

There was a restaurant in the town we used to live in with a frequent diner reward program, and my wife & I were quite satisfied with it. We got a free meal with X amount of accumulated purchases; free meal coupons for birthdays & anniversary; and random ones from time, especially if we hadn't been in for a while.

It scaled back quite a bit when the economy went downhill, but still was the best restaurant reward program I had seen before or since. Haven't found one that holds a candle to that one, and now we live in a small enough town that we don't travel enough to make use of anyone's rewards deal.

Over the past decade I have been involved with some frequent dining reward program. In my experience the local programs where somebody stamps a card work best.
I have spent a frustrating afternoon trying to upload a meal receipt to a site for Outback Steakhouse and Carrabba's Italian Grill.
I sent a couple specific complaining emails to this program after I scanned in the receipt to upload first as a pdf format file and then as a tiff format file. In both cases the file size was roughly 20kb since I have an efficient scanning system.
the system is strangely programmed not to accept file sizes smaller than 100kb. I was waiting for Allen Funt to show up with the candid camera crew.