We loved staying at Emanuele's apartment- It was big and bright and very clean. The 2 bathrooms are quite modern. The kitchen was perfect for us to have breakfast at home each morning and snacks at night. And having a washing machine was a big plus. The airconditioning worked very well (it was in the mid 90s outside but super cool inside) and it is very quiet in the apartment (despite all the restaurants outside).
The location near the Colosseum is amazing- not only is it a gift to walk out of your apartment and see the Coloseeum right there every morning- but you can never get lost, someone will always be able to direct you towards home, and there are several buses and of course the B subway line that go right there.
Emanuele and his team were easy to communicate with (text, whats app).
Of note, there is no elevator and you have to walk up 3 full flights of stairs to this 4th floor apartment. But this was no problem at all for us and we would 100% stay here again on a future trip to Rome.