I chose a hotel in the center, next to a pedestrian street.
There were a lot of offers, in this price category I stopped at this and was very satisfied. The hotel is within walking distance from the Serdika metro station, a nice new building, friendly staff, the room has everything you need. But the main thing is the walking distance from the main street and the main attractions. The room has a balcony with a wonderful view of the old houses of the historical center. I was satisfied with my stay, cost = quality. I recommend it for consideration as a stay.