Great location and very modern look and very comfortable. Owner/manager was always ready to help us with any little or big issue we had.
Check-in and checkout process was easy and simple.
Colosseum and other main attractions are from 10-minute walking distance, but also the Metro entrance (Cavour) connects you with the Colosseum Metro entrance. Also Termini, which is the main bus/metro/train station connects you directly to Nerva.
Only thing is thay they don't offer many options for their help-yourself breakfast.
Other than that, we would stay with them again and will recommend it to friends and family.