The location of the apartment is by far the biggest selling point. It right next to Spanish Steps and surrounded by good restaurants and shops. The cleanliness is a close second, which is great to see especially with Covid. Finally Krista was so kind, helpful and accomodating our late check-in.
The access to the apartment was a little weird, as described in other comments. It didn't bother us at all, but I could see it being a problem for someone with mobility issues. The terrace is on the rooftop and shared with another apartment. We used it in the evening but not as often as we expected, as we thought it was private with direct access from our apartment. Still a really nice feature.
It is a place I would recommend purely due to it's location, it's hard to beat!