Not as big, dangerous and dirty as Naples, not as small and overpriced as the more touristic towns of the Amalfi coast, extremely well connected to everything (except Herculaneum and Sorrento, maybe). Great nightlife, excellent and cheap restaurants, many things to see in or around it. Within 2h you are in Rome, less then 1 h to Naples, 20 minutesto Pompei (with the faster trains). Ferries to Amalfi, Positano, Capri, Ischia. The SITA bus takes you all around the coast, it's a bit slow and often late though,but the views are amazing (it's not any better from Sorrento either, sometimes even fuller and slower). Added bonuses: from here you can much easoer visit the cities of Paestum (3 excellently conserved greek temples-20 -40 minutes on the train), and the seaaide towns of Vietri and Cetara. None of them are overrun by foreign tourists. Vietri is the easiest to get to. Famous for pottery and some of the largest beaches on the coast, about 5 different busses and the trains go to it, so you willnever wait longer then 10 minutes. The ride takes about 10 minutes, you could even walk there, but the road is next to the port-not very scenic and no shade.
Cetara is a bit more remote, you will need to take the SITA bus (goes once-twice every hour and takes20-30 min), but still costs only 1,3 euros each way ( same price for public transport within Salerno). It's an enchanting little fishing village with just about everything you need and nothing more. The only place on e coast whre I have seen more public then private beaches. Great seafood restaurants.
Salerno also has some beaches, but they seemed a bit dirty, so we prefered to go to Vietri or Cetara.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.