Fantastic location very close to the main train station and even closer to the nearest metro station. But the city centre itself is still in walking distance too, if you don't mind a 20min walk. We did a chunk of our sightseeing on foot from there. There is a supermarket very close by too. The flat itself was very spacious, clean and we had everything we needed. Our host was very kind and accommodating at check-in and kept in contact with us throughout our stay. One of the bedrooms is closer to the street than the other one and wasn't as quiet - according to my travel companion -, but she didn't mind as she had ear plugs with her. All in all I can absolutely recommend Caterina and Nick's apartment for anyone visiting Rome looking for a nice spacious apartment for a good price!