This apartment could not have been at a more perfect location. We were able to walk everywhere from the pantheon (10 mins) to the colosseum (25 mins) to the Vatican (20 mins). We were surrounded by great shopping and great restaurants. Market and taxi stand is right around the corner too in case.
Besides the location, the apartment itself was decent. The walk up the stairs is quite steep and enclosed so be mindful of what you pack. The steps are small so it was difficult to bring a large suitcase up (it's an old building, which is understandable).
First thing we noticed when we arrived was that the couch had a lot of stains on it. At one point, we were searching for an umbrella and everywhere we looked was so unorganized. It's as if you were having guests over last minute and you shove things in cabinets to make it look like you cleaned the apartment.
The bathroom didn't seem to have been cleaned before we arrived. There was soap scum in the tub and the shower curtain was filthy. The curtain also doesn't cover the tub so regardless, you will get water everywhere. It is extremely difficult to shower not only because of the low ceiling (my partner and I are both under 5'7), but because the shower head points at the wall so it can only be used as a hand shower. The tub wouldn't drain and even after someone came to fix it, it was still an issue (again, we understand it's an old building). The bathroom also had a musk to it, almost like urine was left in the toilet for a while before we arrived. Be mindful that it's pretty dark in the bathroom.
The location is really the selling point but don't have high expectations when booking here.