Rosarios loft is a great location, cosy and well thought through.
It is right in the center of Catagnia and ideal if you want to dive into the Italian way of live, either visiting one of the nice bars or Jazz joints around the corner or if you want to visit the Pesceria fish market and cook for yourself (great kitchen!). If you like exceptional design the loft is amazing.
The trains are indeed audible as Rosario states in the description, but they did not bother us at all and will only rarely pass by. If you are very sensible to noise you might not want to be there during the week-ends because the neighbourhood is bustling and full of activity then - which we loved though - we actually liked the distant sound of live music and people talking in restaurants. During the weekdays the apartment is very quiet.
Rosario was very kind and helpfull, he even managed the impossible: a free car parking during the week-end.
If you pass by Catagnia and want to enjoy a bit of italian city life, Rosarios apartment is a must in my opinion – big recommendation!