The apartment is perfectly placed in the hearth of rome. Pulic transport and the colosseum is reachable within a minute by foot. In the opposit walking direction it has a lot of smaller and good restaurants.
A big advantage the place has is that the host has a gallery/cafe right beside, which makes check-in and check-out really easy and quite flexible. You also get discount at his place but beside the some good drinks the food (or in our case the sandwiches) weren't really worth it but the owner is extremly nice and helpfull.
A little downsider could be the mediocre working ac but during our stay it wasn't too hot so it was okey.
All in all if you get to the city to see the main sights and also if you like to have your own big terrace to hang around it is a great place to be and to use as homebase to explore the city.