Location is good for the Olympic stadium - about 20 minutes walk to the swimming pools or can take a bus/tram about half way if hot or raining.
Ladispoli is a good option for a beach day trip - black sand with free public beaches or pay for bed/umbrella options, under an hour from Termini or other train stations, 3 EUR each way.
Good internet in the main room.
10am is a very early checkout time for holidaying people.