We used Antoinette’s place for our long weekend in Rome. It’s a fab apartment with everything you need and is very clean.
There are lots of cafes and restaurants in the immediate vicinity and it’s just a few minutes walk to the Colosseum.
The only two points I would note:
Firstly, It’s on the 4th floor so plenty of steps. There is a lift but I had a look and didn’t fancy it.
Secondly, the traffic noise in the evening must get a mention. Even on the 4th floor vehicle noise/horn honking from the streets below is quite noticeable. Beware if you are a light sleeper like me as the noise is often through the night.