This is an exceptional B&B/AirBnB, one of the best of the many we have been in .Close to the railway station, not far from the bus station and well positioned in an interesting and characterful town.
Exceptionally clean, comfortable bed with extra pillows. Facilities are excellent, with lift, washing machine, good heating and cooling, but the thing that makes this place terrific are the guys that run it. They are very focused on making sure your stay is great, whether by providing an excellent breakfast with little touches like different cakes, desserts, coffees and milk, as well as making sure your questions are answered quickly.
Lovely view of the sea, though you are a couple of miles away. Bus 1, 2 and 3 will take you to the Valley of the Temples, 2 or 3 take you to the coast. Buy bus tickets from the kiosk by the side of the railway station, not the tobacconists. Good butcher downstairs to the left, baker to the right. Supermarkets are harder to find, but there are plenty of restaurants.
Agrigento seems full of nice friendly people.