We had a great stay at this apartment. The main feature of it is the closeness to the central Roman attractions, and the fact that even though you are in the busiest part of Rome that the apartment is very quiet and feels like a break from the crowds. It really is very quiet and the AC works well - which is important if you are traveling in summer 2022, as Rome is in a major heatwave.
There are 2 levels - the lower level is the hallway, kitchen and living / dining room, with a balcony looking out over the rooftoops of the neighbours. this is very spacious area, although we found the couch (which doubles as a very small sofa bad) to be a bit uncomfortable - it's small for 2 people. We hung out in this area a lot, the kitchen is well equiped and fully featured although it's relatively small, it's cleverly designed.
The view from the lower balcony is actually quite wonderful. Looking out over rooftops and other people's gardens doesn't sound that much fun, but actually looking out over rooftops at sunrise and sunset is really the Roman way of relaxing. It's actually very peaceful and beautiful and it doesn't feel like intruding at all. It's like watching the world gradually wake up, watching the world go by...
The upper floor is really a mezzanine area with the main bedroom & the only bathroom / toilet. The staircase is a spiral metal one with solid wooden steps, quite steep. The bed was comfortable and the bathroom was fine. As you will see with other reviews, the shower is not a full stand up arrangement - i'm 6'4" though and had no real problems with it, i was able to crouch a bit and use it fine. The upper floor also has its own balcony but the outlook from it is much less interesting than the lower floor balcony. The washing machine is on this balcony.
The overall feeling of the apartment is older - i wouldn't say it's dated so much as it is from a particular time period. My wife called it "old rome" as opposed to a newly renovated place. The elevator is functional, but hot and very slow. It took a minute to get from the ground to floor 3.
The location is completely central. On the first night, we walked about 2 mins from the place, along a quiet back street, and stumbled across the Pantheon! It's probably the closest you can be to some of these central attractions without actually being right on them. The area outside the place is a tiny bit rundown, but that's central Rome for you. We were surprised by the general griminess of Rome compared to Venice or Florence, it's so chaotic and everything is happening at once.
So, we really enjoyed the location, quietness and spaciousness of the place. It worked well for us and was an oasis away from the crazy crowds, while still being completely central.