The location is great, the staff are super friendly and if you get a private room the breakfast and dinner (spaghetti and a beer) are free. If you stay in a dorm they are only 6 lev. Plus there are kittens and wifi!!! What more could you want??? It is a little bit tricky to find the hostel if you are new to Sofia. Something to consider is the hostels €10 transport service from the airport. Pre-book with them and they will get you from the airport to the hostel with no hassle! Enjoy Sofia!