There is little to say about Susa, being a small town. It was founded by Muslim refugees from Crete late in the 19th century. While the town is nothing special, nature around is among the finest of the Libyan coast.
Eat and Sleep
Susa now as a few acceptable hotels. The hotels also have restaurants.
Transportation
Public transport in and out of Susa is poor. You may well be forced to arrange for private transport.