Really good apartment, well kitted out with everything you need (as with most italian apartments you get stove top coffee makers and milk/water pans - no kettle). Great location, 2 minutes walk to Santo Stefano and about 10 minutes from Piazza Maggiore. Local shop/bakery/gelateria just up the road. The apartment was a great size for Italian City especially having the extra bedroom and a bath. Others have commented on the noise from the bar (talking not music) over the road and yes you can hear it but as this apartment is at the back of the building the noise is at least muffled (didn't stop our 2 & 4 yr old getting to sleep) and everyone usually dispersed around 10-10:30 so we didn't find it a problem. Katerina was great before and during - she lives nearby and offered assistance if we needed it at any time (which we didn't), we forgot to email when we landed then found we had no internet outside the apartment to let her know we were there - was able to log into wifi in a cafe up the road and she was there within 5 mins.
I would definitely recommend this apartment.