Alessandro's Apartment is awesome.

It has very good internet connection, great shower (very hot), nice bathroom. Very cozy and private. He lives next door and he is very helpful when needed (i had to wake him up a 7 AM on a sunday, the day i was leaving because i forgot my jacket inside the apartment). Also he was very helpful letting us check in early because our plane arrived in the morning.
It has everything you need close: Pharmacy, supermarket, bakery at the front, a nice restaurant less than a block away (Botrini), it has even a place where i could print my tickets for the opera and stuff (i forgot the name of the place). The supermarket is 24/7 but beware that things like pharmacies closes early in Italy, so if you need one it is better to go before 6 pm. Garbatella is a nice and quiet place where you can walk safely at any time of the day. There is a bus stop in the front of the building which is very useful or you can walk 15 minutes to Garbatella subway station.
I strongly recommend Alessandro's Apartment.

Cheers Everyone