Pros: The host accommodated our early check-in request. The air-conditioning worked wonderfully and was much appreciated on 93 degree days. The rooms were spacious. The location was great - we walked to all of the major sites except for the Vatican (which was a little too far). Grocery store was nearby, as were plenty of restaurants. The Wifi seemed good but didn't reach one of the two bedrooms.
Cons: The apartment needs some maintenance and attention. The couch was so dirty that no one would sit on it until we covered it up with an extra sheet. The kitchen counter was dirty in places and the dishes needed to be washed before we used them. Other examples: Some lightbulbs were burned out, one of the recessed lights in the bathroom was dangling from a wire, and the toilet paper holder was falling off the wall. We couldn't get the TV to work, all we could get was a message that there was no signal so we had to use the Firestick that we had brought. In summary, it wasn't terrible but wasn't nice enough to merit the approximately $425/night that we paid.