First time and Rome and what an amazing stay. It was in the middle of everything (15-20min walk to all the major spots like Vatican, Trevi Fountains, Pantheon). There is a taxi station 2min walk for easy transport, a convenience store + water station around the corner & top restaurants (based on reviews) within 5-10min. It was specious, clean and easy to access. Couple things to note: 1) Since its an older building the sound proofing is not that great. Didn't bother us but if you're a light sleeper with might be affected (I think is will be almost everywhere in Rome though)
2) Air-Conditioning will turn off every time you leave the apartment (The key to turn the lights on are attached to the keys that you need to leave/lock the door). It wasn't as big of a problem as I thought since the place is naturally cool inside due to the stones. However if you're travelling in July/August and you leave for the whole day, definitely could be worse. However, a quick shower and you're fine.