Guido is a very good host; he was waiting for us at the apartment and provided plenty of info about the apartment and the city, including a map where he marked the best spots as monuments, restaurants , bars and pubs where the locals hang out. The apartment itself is huge, located around 20 minutes walking from the train station (last 200 meters are on a steep and uneven street, so it may be inconvenient if you have an heavy trolley) but just a few steps from Bergamo Alta, the old part of the city which is truly beatiful, so, even if you're only staying overnight just to catch a fligh from Orio al Serio, don't miss it! The area was safe, quite even on a Friday night, beds are extra-comfy and the rooms are nicely decorated in a cool minimalistic way (travel guides, stylish lamps, an orange couch and quotes about travelling painted on the walls).