Went into Starbucks in Sevilla 3 years ago because it was opposite the cathedral which we were waiting to finish mass so we could visit.
It was, we realised, not very clean or litter-free. We thought no matter, we'll persevere. When the coffee came, the China was dirty [lipstick), so we got up & went to remonstrate. They couldn't believe that we demanded the reparations book, & took an age to produce it.
We weren't fans before, but ever since have managed to fulfill our promise never to return.
Free WiFi was their only plus, & so many places now offer that,