I know this hotel is one of the cheapest hotels in Sofia I could find with Expedia, I still noticed that the room was fairly dirty. There is dust on the TV, table, by the window, in the fridge, and of course, in the bathroom. I washed the bathroom with a shower (before use), but I could "literally" see that the water turned dark on the bottom of the bath because of the dust..........
I felt that the front desk wasn't that friendly to me when I checked in/out. They knew I do not speak Bulgarian, but that doesn't mean they can treat customers unfriendly....