Fausto was an amazing host! Really welcoming and funny and always happy to help, but still not intruding which I think is very important :)
Blu Tango Guest House is the perfect place to stay in Rome, in the PERFECT neighbourhood Monti. We stayed at the dolphin room which was very comfortable and tidy. There wasn't anything I would change about this place.
Close to the guest house you will find a friendly piazza where the italians sit with tourists and have a glass of wine. On saturday evening there even was a music band playing. You'll find an amazing pasta place just 50 minutes away :) The Colloseum is literally 10 minutes walking distance, and so does the Forum and everything you must see when you're there.
If I could I'd be back there in a minute!