We spent 2 night there, in a 6 places room, we enjoyed it althought the room and the bathroom wasn't so clean (but one bathroom was very nice, under the roof on the top of our bedroom). Good terrace where having a breakfast or a beer, good people travelers there were also families with small children. we were backpackers, and didn't looked for sterile room, we gave more importance to the atmosphere there, and i wuould do the same if i had children with me. Good place, in the city center, but Sofia is so small u can sleep everywhere and u will be already in the city center. one bad note: we had a lot of difficulties visiting sofia, people in the hostel hadn't any big or small english guide or simple flyer about the city, they gave us just a map, but it was written by cirillicus! In the city center we didn't find any guide...

This hostel is in an old (130 years) house in a lovely and central part of Sofia. It's on a quiet street next to an excellent art shop.
The people working in the hostel speak decent english and you can book rooms over the phone (which we didn't find with Hostel Mostel).
We shared a twin room with ensuite bathroom with a towel included for 60 lev (30 euros) which included coffee and pastry for breakfast, which we ate on the balcony/terrace. Everything seemed clean. The common room was quiet when we were there in the middle of August. It has a television and some books.
Overall an excellent hostel which is good value for money. I would certainly stay again.