What others have said about location/proximity to Trevi Fountain is true, 2 minute walk/around the corner.
The space is as spacious as it seems in the pictures, but the bedroom bathroom is quite small. The shower itself is small and is situated awkwardly and diagonal/in front of the toilet - difficult to get in and out without touching/hitting the toilet.
The decor and paintings are interesting.
And that's about it for the pros. I spent 24 days in Italy at 4 different Airbnbs in Milan, Venice, Florence, and Rome - with this unit in Rome being the longest stay of 9 days. The other 3 reviews were 5 stars and this was by far the least enjoyable despite the positive above.
First off, please remember, no elevator - 3 flights of stairs for any travelers with heavy baggage. One of the stairways looked cracked, slightly scary.
As another review mentioned, when we were there Oct 4-Oct 13, the floor of the inside entrance of the building was taken apart - literally, you can see into the underground, it's a hole. A child could fall in and it'd be difficult to get the kid out. We don't have kids, but the bigger issue is the sewage smell that comes from a holes that goes as deep as the entire corridor inside the entrance. Even when they placed some walking boards/planks on top of the huge hole, it still smelled. But alright, that's a building issue, not the host right? Another issue mentioned in previous reviews is that there's one key and that key is needed to turn the electricity on. I thought this would be a small issue, but because there's so little natural light in the unit, it's dark even during the day so whether it's a roommate, significant other, or anyone going out without you/separately, you're left without electricity - or whoever is going out will have to wait for you to go down 3 flights of stairs to open the front door. Maybe this is also a building issue, not the host.
But here are some items that are on the host. The guest bathroom shower didn't drain well - it immediately floods/becomes a huge puddle when the shower is on. This was another item mentioned in a previous review that wasn't fixed. The sheets and towels are old - to the point where we purchased new towels to use. This was also mentioned in a previous review. The comforter itself has a large hole in it. Checked the closet for an extra pillow, found cushions/pillows with white-ish stains on them - disgusting. Looked in the cabinet underneath the tiny bedroom TV, it's just an unfinished cabinet space and can see the cement/wall with random items/trash inside. Ceiling in the guest bathroom has mold growing. Sink in the kitchen may be gold colored but clear discoloration/cracked near the faucet. Cups are not cleaned well and stained. I didn't mind it so much, but leaving 2 rolls of toilet paper for a 9-day stay doesn't really make sense compared to other stays. The bedroom AC smells old, the air that came out smelled of old wood, a sort of sour kind of smell - needs a new filter.
And perhaps the biggest issue isn't even the issues above - it's either the language/lost in translation or unwillingness to listen. Looking at the host's responses to other criticism/reviews, it reads defensive instead of a willingness to improve. Perhaps it was the difference in language, because the host offered to come by and look at the shower, and when I said I don't mind if she comes by while I'm at the unit, but we won't be in the unit during normal hours since we're sight seeing - in which she politely responded that she understands we're on vacation and won't disturb us. And then no more communications/mention of fixing the shower. I wanted the shower to be fixed, just at a time that we can agree on - instead, she just took it as this doesn't need to be fixed.
Again, could be language, but looking at past responses to reviews....and that the host mentioned she's been renting the unit out for 12 years and never had an issue. It's just defensive, as if the criticism is taken personally and not professionally/constructively. And really, 12 years, it shows in the unit - from the shower to the sheets/towels.
I wanted to be as fair, respectful, and helpful as possible, but this unit, although conveniently positioned near Trevi, has space, and has some interesting decor - there are just so many misses, especially on cleanliness. I sincerely hope the unit will improve going forward, but it's unlikely that I would stay or recommend others to stay at this unit in its state when we stayed there.