The current name for this TWHS is a bit misleading. The old town of Bar is not what you expect, when visiting an old town, but rather an archaeological site, with entry fee and opening hours. It is, unlike the other old towns I visited in the area, not at the sea, but up in the hills. The whole complex is surrounded by massive town walls and includes the remains of churches, towers, palaces and a citadel. From the citadel you will have the best view on the aqueduct and the mountains.
The old town is a popular tourist attraction in Montenegro and therefore comes with the needed infrastructure. There is a big parking lot you will share with numerous tour buses. Going there on an organized tour is probably the best option, if you don’t drive. Around the town walls there is some kind of newer old town, with nice Ottoman style houses. Each of them is either a restaurant or a shop.
In general, this makes for an enjoyable visit and if you only have time for one thing along the coast of Montenegro, Bar is a good choice. It would, in my opinion, also deserve a spot on the list, as it is one of the most important archaeological sites in the Balkans.