The apartment is super nice - really cosy and conveniently located. The area is quiet and authentic but you have a good supermarket close by and you can reach the city center sights by tram 8 or even just walking - we walked lazily back from the Vatican in about 50 mins.
The balcony is superb for afternoon sunbathing - an added luxury you usually don't get in a hotel in Rome.. Compared to the other times we have been in Rome this was a clear winner - I would definitely stay here again.