The Air Star Hotel is very much to be recommended. Being a little bit off-site, it can afford to offer a good, full service at decent prices and acceptable conditions in a manageable distance to Nikola Tesla Airport, Belgrade.
I enjoyed the stay, the young staff was very kind, supportive and perfectly english speaking. The room was comfortable, the breakfast and the conference rooms in the attika make a special asset with the potential to become a roof top bar, too.
Looking forward to next time at this place.