It's an amazing place, we were a group of 3 and it was really nice ! The place was super clean and Anna is always here to reply to your messages and help ! The place is bigger in reality ! There's a lot of stuff to clean but also for yourself (Air conditioner, hair dryer, etc..).
Also, it's around 10 minutes away by walk from Termini train station ! There's some bus and metro not far as well !
For visiting : it's around 15 minutes away by walk from the Colosseo, around 20 minutes away by walk from Fontana di Trevi, around 20 minutes away by walk from Piazza di Spagna, etc !
I recommend this place !