The apartment is ideal for a stay in Rome. Literally around the corner from St. Peters, but it is so quiet you wouldn't believe it. Galina/Claudio were great hosts -- the list of recommended restaurants and bars are very worth checking out.
If you are feeling up to it, its walk-able to the Colloseum and other major attractions near central Rome in just about 40 minutes.
Highly recommended, unless you have an aversion to lofted beds with minimal headroom. This was not a problem for us, even after 2 bottles of wine.