This is a stylish flat in a very smart block, right next to the Via Roma and on several bus routes. The airport shuttle stops very close so is ideal if you arrive by air and don't have a car. We didn't realise how close our bus stop was, so we arrived in a shared taxi from the airport, which only cost us 7€ each (the airport shuttle is 6€ each so the taxi was great value!). Antonio has added some thoughtful touches in providing a veritable library of books and DVDs, a games console and controls, music player and loudspeakers, and a large screen TV.
Buses run frequently along Via Roma and there is a stop almost opposite the road where the flat is. Bus tickets can be bought from tabacchi and cost 1€40 each and a ticket can be used as many times as you like in 90 minutes.
There is a large selection of affordable restaurants close to the flat. It's a bit of a journey to the beach, however. We went to a lovely beach at Mondello by taking two buses (so it cost us 1€40 each way. Good value, but buses can get very crowded.
I certainly recommend Antonio's flat for a comfortable stay in central Palermo. We were two pensioners, so we appreciated the lift and convenient bus stops!