Rome was our first stop on our Italy vacation, and it was such a relief starting our journey at Nani's place. She was there to welcome us when we arrived (and arranged our airport transfer), and was so warm and inviting with plenty of local tips.
Trastevere was such a cool neighborhood to stay in. It felt like more of a local experience than the "other" side of the river with the main sites. We loved traveling around Rome and ending our day/evening in Trastevere. It was a very easy walk into the main center of Rome which was also great - about 10 mins to cross over the bridge to get to main attractions.
In terms of the actual apartment, the bedroom and bathroom were very nice, bed was super comfy. We loved the ceiling in the bedroom - such a cool look with the wood. And the shower worked well, no issues with running out of hot water. You do have to walk up several flights of stairs to get to the unit which can be challenging with your luggage, but we were able to make it up fine.
You can tell Nani really cares about her guests and I would definitely recommend staying at her place!