How are you different from 4square, or google maps (suggestions near you) other than the 'deals'?
I've visited restaurants with 5 star reviews, and hated the food and the service. I'v visited dives (according to others) and met amazing owners, ate great food, and it felt like I was part of the family. (thats here in the States and also abroad)
There is a risk to life, the risk of 'choosing a bad place' is part of life. IF the idea is to find something different and new, our family does this when on the road...
When we determine we are hungry, we get off at the next exit or town. The rules: 1. we eat at the first restaurant we come to that hasnt been veto'd 2. all vehicle occupants have 1 veto per meal 3. I get a final and unchangeable veto purely on health and safety.
Process offers pretty much what you elevator pitch offers, but without the deals. To me, that means, you need to up the value add someplace.