Wonderful apartment, absolutely spotless, and very comfortable. I highly recommend this to anyone who wants to enjoy Rome for a couple days or much longer (I stayed for a month).
I was well received and felt completely at home. The neighborhood is excellent, and although not completely in the center, there are buses that run every couple of minutes right around the corner and take you to the center in just a few minutes. I never used them and simply walked, and usually walked somewhere between 5 and 10 miles a day. Being next to the Villa Borghese is so lovely: cross the park in twenty minutes and you're at the Plaza di Spagna, then just a little bit further to the Trevi Fountain, the Pantheon, the Piazza Navona...
If you choose this apartment you will be happy you did. There is a high quality grocery store around the corner, and plenty of fresh food markets nearby (thanks to the classy neighborhood).
It was perfect. Absolutely perfect.