lower Manhatten McD's
Note: McDonald's that are locally owned are usually of better quality then those that are owned by the Corp. Also, it depends on the management and crew.
Last time I was in Paris hit the McD's at Versaille (a potty and drink break). It was the most disgusting place I have ever been in! I needed a llysol bath afterwards.
Now, the McD's by the Spanish Steps in Rome (this time a drink break only)
was amazing! High marble ceilings, frescos the works! A very classy place.
Too bad they don't look that way over here