We chose this Airbnb because it had 2 bathrooms, air conditioning, and it was close to Termini and the Colosseum.
Pros: (1) The host. Manuel was so easy to communicate with. He was quick to respond, very friendly, trustworthy, and very kind. He left food for us so we had cold water, milk, cheese, tea, coffee, croissants, etc. (2) The location. It is in a lively area. Great for young people. It felt safe. It was quiet once we were inside. (3) Multiple bathrooms! (4) Netflix. Manuel has a TV set up with Netflix for his guests. (4) Privacy. The Airbnb is in a lively neighbourhood, but it felt private enough. The windows all closed well enough so that we didn't hear much from outside throughout the night.
Cons: (1) Italy is humid, so the inside of the Airbnb can be a bit damp. The air conditioning really helped with this, so if you leave it on, you should be fine. (2) Stairs. This is stated in the description of the Airbnb. You may have to bring your suitcases up the stairs to get to the two beds there.
This is a great Airbnb for its location and cost. You might be able to find a more modern Airbnb in Rome, but you'll have to be further away from some of the main attractions (like the late night gelaterias!). I stayed in three locations when in Rome, and I thought that this was great for its price.