Rocco's place is centrally located. It is a breeze to find and it is reallly convenient to the train station. The restaurant 3 doors down - La forcehtta d'oro - is wonderful; be sure to eat there. Rocco's place is loud, but he provides ear plugs, which you will need.
If you need to use both beds, be sure to be clear when you make your booking. We had to share a bed one night, but Rocco brought sheets the next day to allow us to use both beds on our second night.