I am not certain how one arrives at this location on one's own as I was part of a tour group. The staging area for the various buses is some distance away from the Piazza and during our walk in, the guide let it be known that there was at least one group of beggars/pickpockets about whom we should be aware. Fortunately, I think we were a big enough group that they didn't bother us.
We also got to see one of the local Italian trains which, since I am a train fan, was interesting. Italian railways, like the Spanish, appear to use concrete rail ties/sleepers rather than wood...
We then walked around the walls of Pisa to the gate into the Piazza.
The minute you walk through the old gates of Pisa you will likely notice two things. The first are the Baptistery, Duomo and the Campanile (the famous Leaning Tower) across a velvety expanse of lawn.
The second is a sea of people either walking around or posing in front of the tower (most using forced perspective to seem like they're holding it up, a few like they're pushing it down. I did neither). There are also a number of stalls all along the street selling various kinds of souvenirs: always fun to look at and even occasionally to buy from.
The various religious buildings in the Piazza are all made from the same white or white-grey stone which gives them a unified look. They're very pretty from the outside, but unfortunately we didn't have time to investigate the insides, except for the Tower. Having done some research prior to the trip, I do know that the Duomo is free to enter, the Tower has a separate ticket price and there are four other attractions in the complex that can be seen alone (single ticket) or together (combination ticket) and if I'm ever back in Pisa I may just check them out.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.