Pros
Gracious and accommodating host - he even made a book with information on what to do, where to eat, how to get around, a city map, etc.
Location- close to everything you will want to see and need (2 min walk to taxis, the colosseum, restaurants, minimarts, etc)
About a 48 euro taxi ride to airport (30 min or so), and a 8 euro taxi ride to train/bus station)
Clean apartment with awesome decor
Well equipped kitchen
AC that worked amazingly
Wifi
Neighborhood felt very local and not full of tourists
I would stay here again 100%
Cons
None, it was perfect.