Read "Little Herr Friedemann" and "Tonio Kröger" a while ago.
Recently read "The Joker" which I really liked.
"The Road to the Churchyard" was brief and satisfactory, "Glaudius Dei" was an interesting idea, and "Tristan" was insightful and had some cool music imagery.
Overall quite liked Mann's short stories, he definitely has a theme he likes but there is sufficient variation to make each story interesting. I personally relate to his protagonists a lot in my current unemployed stage of life.