We spend 1 night in August 13, and really loved the hotel.
Location: its Best features ! Right in the middle of the Vitosha blvd, the main street of Sofia, with its many trendy bars, cafes and boutiques. The location is also very close to the main cultural attractions: the Alexanderntesk church is 10 min walk, the church Sveta Nedelya is 2 min walk...
Rooms: comfortable, enough space for 2 but not huge rooms, very original design with great attention to details, large Bathroom with all the necessary goodies (products, bathrobe, slippers...)
Lobby and common areas: not very big (it's a boutique hotel) but again very nicely decorated
Staff was friendly and breakfast was OK, with Illy coffe though, which is a real plus