It's a good sized studio apartment with a little kitchen. It was nice and central too. The bed was reasonably comfortable, though not hotel-quality, and the A/C unit did a decent job keeping it cool (though it struggled to get it to cold).
The shower had good pressure and could get really hot, but seemed to alternate between real hot and real cold at the slightest twist of the knob.
Overall we enjoyed our time and would recommend this apartment to someone looking for a nice home base close to the sights and the nexus of the Roman public transit lines!