Book this apartment. I was lucky enough to stay here for a month, and there is not a single thing I would change. The location cannot be beaten. You are the centre of historic Rome, the pantheon is literally on your doorstep, the Trevi fountain is 5 minutes away, and the Colosseum and Vatican are short walking distances away.
The apartment has everything you need - good wifi, great shower, a washing machine/iron/hairdryer, comfortable bed, big tv with Netflix, coffee making facilities.
Elena was a wonderful host, great communication from start to finish and made me feel incredibly welcome in Rome.
I’ll be booking this apartment again next time I’m in Rome.