Belgrade Nikola Tesla Airport is getting better slowly but surely. Recent positive changes I noticed are that smoking is banned throughout the terminals except small designated area airside near gate A5 if I remember. Also I saw some WIFI points airside as well. More and more shops are added day by day but lack of proper decent restaurant is obvious thou they recently opened a self service one near A4 which seems really nice. Departure terminal 2 and arrival hall look spacious bright and modern. What needs urgent renovation are transfer desk and airside paths and waiting rooms all the way from A1-A8 as they were used even during the renovation process thus look really worn and do not match the rest of the renovated terminal 2.