We had a great time in Roma, enjoying the city and romantic evenings at Mario's appartment (wine and candles were ready for us!). Mario's place is definitly praticle to discover the city and very comfortable, on physical and esthetical way (the appartment is a masterpiece of art by himself).
Mario was very helpfull (you can ask him whatever you want: he know it!) and totaly discret (we never crossed him during our stay). On a "distant" way, Mario really took care of us, with many great intentions as a welcoming bottle of wine, a fridge with all we need for a delicious breakfast...
So, to conclude: we definitly recommand Mario's home!