Where should first-time visitors base themselves in Belgrade?
Stay central enough that walking and public transport do the heavy lifting. Belgrade spreads out, and a cheaper base can quickly become a daily taxi-and-bus tax.
Answer
For a first visit, Belgrade is easier when the base keeps the city close. The point is not being beside one famous square; it is being able to walk to meals, cafés, museums, the fortress or a sensible transport link without turning every plan into a transfer. Areas around the old centre, Dorćol, Vračar or well-connected parts of the wider core can work depending on budget and trip style, while far-flung bargains often cost back in time and energy. Belgrade is enjoyable when you can drift, stop for coffee and change plans. A bad base makes the city feel more difficult than it is.