At first glance, we would have given this Airbnb 5 stars but after staying a few days our thoughts changed.
The good: Loved the location, 4 min walk from the Vatican and still easy enough to cross the river and get to the Pantheon area (~20 min walk). Lots of restaurants nearby. The host left us 2 sets of keys which was super convenient when our group wanted to split up. Washer is convenient and things like a clothing iron and outlet adapters were available. Host provided plenty of body wash and shampoo.
The cons: It's advertised as 2 bathrooms but in actuality it's like having one. You could use the shower in one bathroom and the toilet in the other. The shower in one of the bathrooms was not usable because it did not have a door/shower curtain. You couldn't flush anything down the toilet in the second bathroom (you could pee but you'd have to discard of toilet paper in the waste bin) and when you flushed it smelled horrendous so there are probably some plumbing issues. Our biggest issue with the place was the mold/mildew. The usable shower had mold growth due to humidity and the ACs smelled like they too had mold inside (we know from experience with mold in our own home). The AC needs a filter change. Bathroom needs a deep clean with bleach. When we turned on the ACs, the entire apartment would smell dingy. Breathing in mold is not only unpleasant but it is also a health hazard. Lastly, wifi only worked in living room area.
If you aren't particular about the things I've mentioned then you'd probably be fine in this place. The location is amazing and the place is spacious.