First of all, the location was great. It's 10 min walk to almost all of historical Rome. Vatican city, Spanish stairs, museums and just next to a very live street with restaurants, cafe vine bars etc. It is really easy to get there from the train station which is the main access to the airport. The appartement itself is very convenient up to 7 people. The fact that it has 2 bathrooms was crucial in the mornings for us. We were 6 adults trying to get up early and leave quickly to see more of Rome. If needed the appartement has all appliences in the kitchen and in the bathroom like a hair dryer etc. If the price matches your budget, it is a good choice.
Gaia is very nice and helpful, maybe more than you need.