We came here on several free walking tours as this...

We came here on several free walking tours as this stop was part of a "break" built into the tour itself and it was both a smart move to gain publicity about the place, but also a nice place to rest for a few minutes. If I remember right, the cafe directly works with a charity (the homeless of Edinburgh I think) so it was nice to support that cause while also drinking a hot coffee and eating a delicious carrot cake.