The room is perfect. You have a lot of space, drawers and hangers where you can accomodate your clothes, a pretty big desk, very convenient if you have to study or work, both the desk and the bed have a little lamp.
Ivaylo had prepared for me towels for the shower and blankets in case I was cold. The kitchen is very complete, you have everything you can need to cook, and you'll have space in the fridge for you in case you need it. He also has a washing machine. the bathroom is small, but you have enough space, and again everything you need is in there.
Ivaylo was an amazing host, he even accomodated the situation so I could do an early check in (because I was coming by plane and had classes in the afternoon). He is great to talk to, I often lost track of time.
The flat is situated very close (5 mins walking) from the metro station and 1 min from the bus stop, so even it is not in the center of the city you get there super easily and have several options to choose from.
I very much recomend the place and Ivaylo :D.