The only thing that I've missed was a mirror in thw room and maybe a bigger towel.
The hostel is in a big apartment in the center of Belgrade, perfect location for everything, bars, restaurants, pubs, shops.. We had a double room with private bathroom.The room was very spacious and even tgough there was like -15 degrees (Celsius) outside we were never cold. The bed was comfortable and the bed linens new and clean. Everything was very clean and what I liked, even beeing a smoker, is that is forbidden to smoke inside (not common for Belgrade), but there is a balcony where you can smoke.
But the cherry on the top were the owners, Ana and Voja. They were really friendly, we've been offered coffee every morning (free of charge), fruit.. and a lot of advice.
Not because of the place beeing in an apartment but because of them it feels like being at home. I totally recomend it to everybody.