The site may be especially useful if you want to get a local take on what’s happening in a particular place. You can search by place or address, as well as newspaper name. Another usage scenario is finding more news sources in your chosen language, since you can also filter the newspapers by language.
The map visualisation of all these newspapers is pretty astounding too (and may be useful for academic research). The developers are continuing to add new papers, and say they have pretty much full coverage in over a dozen countries, including Sweden, Spain, France, Austria, Israel and others.