Overture is an awesome resource because it has more coverage than OSM, but at the cost of accuracy. When I was considering using it for restaurants in surprisedatespot.com, I found that it has a lot more automated content with bad geocoding (imprecise locations) compared to OSM.
E.g. restaurants can come from an old Facebook page and the geocoding might not be accurate compared to a survey.
So where OSM might have a restaurant that closed 8 years ago, overture has every restaurant that's been at that location for the past 8 years.