Bulgari Boutique HotelvsArt Hostel
Both properties are endorsed by writers. Overall, Art Hostel ranks slightly better than Bulgari Boutique Hotel. Art Hostel ranks #10 in Sofia with endorsements from 2 sources such as Lonely Planet, DK Eyewitness.
Bulgari Boutique Hotel
 DK Eyewitness
50 Pirotska str., Sofia 1000, Bulgaria
From $41/night
- Bar/Lounge
 - Free Internet
 - Dry Cleaning
 - Air Conditioning
 
 "Small and friendly hotel in one of Sofia’s oldest shopping areas, just round the corner from the Zhenski Pazar market." 
Art Hostel
 DK Eyewitness
 Lonely Planet
21/A, Angel Kanchev str., Sofia 1000, Bulgaria
From $27/night
- Pet Friendly
 - Bar/Lounge
 - Free Internet
 - Free Breakfast
 - Laundry Service
 - Breakfast included
 
 "This hostel, in a very central apartment, has eight simply furnished rooms with wooden floorboards and high ceilings. There is a communal kitchen and a shared bathroom in the hallway." 
Top choice
 "This bohemian hostel stands out from the crowd... Accommodation consists of a attractive, brightly painted three- to eight-bed dorms as well as some airy private rooms." Full review