I sent a separate request for each bounding box area and limit to only the top 10 restaurants in the search response. Each bounding box is small enough where I'd say that the top 10 restaurants are a good gauge of how well-reviewed the area is.

Invisible chairs have been around for a long long time: http://i.imgur.com/tIIBKCY.jpg

You are correct sir. And as an added benefit, it keeps you nice and limber.