B&B Corte Rossa is a great two bedroom apartment, very close to the Bernina Express train station.
It is clean, comfortable beds, great shower, etc.
As expected, breakfast isn’t included but there were some little cakes left for us, which were tasty and appreciated.
The apartment is close to some lovely restaurants, which were all reasonable in price.
We stayed one night. Tirano is a quaint place and worth a stopover before / after going on the Bernina Express.
I would recommend B&B Corte Rossa.