We recently stayed at Green 152 Apartments before disembarking for a cruise. It's location was amazing! It's only a 10 minute walk from Termini station and it's conveniently located within walking distance to all major attractions in Rome - Trevi Fountain, Colosseum, Roman Forum, Palatine Hill, and Spanish Steps.
The actual apartment was amazing. Very clean and because the apartments are a little further back from the road it was also pleasantly quiet, even though it's close to major streets. The beds were a little harder than North Americans might like and the sofa bed was somewhat uncomfortable. The courtyard inside was relaxing and peaceful.
Andy was awesome and very nice. Green 152 was accommodating and allowed us to check in early. Check out was easy - all we had to do was leave the key and walk out!
I would definitely stay here again if I was ever to return to Rome. If you plan on staying a while, this place is a definite contender.More