Gemma's location is really close to all the major tourists' spot, so it's really nice to be able to walk to the Colosseum whenever we wanted during our stay. It's also about only 5 minutes walking to Termini stations where you can take a train to Florence/ other cities or in-city metros. Not to mention the amazing view from the patio. There is a very very very nice bakery next to Gemma's place which we both love.
There is only one problem- the neighbor below is a little crazy so please keep quiet or walk on your tiptoes in the night or he will come after you :( [in a positive way, it's a very genuine Italian experience]