Simone is a great host and goes out of his way to make sure you are having a nice stay. a couple of times things went a bit wrong (the cleaner forgot to put and toilet paper in the bathroom and we had a couple power outages when we used the oven) but simone was quick with responses and even bought us a bottle of nice wine as an apology. the bathroom is a bit pokey but does the job and the rest of the apartment is large enough for a couple comfortably (although we wouldn't want more than 2 people in the place despite the extra double bunk bed).
There is a great all you can eat Japanese restaurant down the road (yuki tai), otherwise make sure you get a tram/bus card so you can take a short hop on the number 8 tram to take you into Trastevere or central rome properly - don't walk because there really isnt anything else worthwhile local to the appartment.
all in all once we figured out the logistics of rome we had a good time and were comfortable at Simone's apartment