Valerio's appartment is great, nicely arranged, modern and very clean.
Also, it is relativley close to supermarket (5 minutes walk).
Plus, there are bus and tram stops close to appartment (5 minutes walk).
By the way, our experience was that tram is a better option to reach Termini station and also when coming back from Termini.
Valerio was easy to reach and always ready to help. Only thing that was surprise was a Rome tourist tax we had to pay in addition.