Silvia's place was about 2 small blocks from the left side of the Roma Termini train station. Very close and perfect to use since we were carrying about 50 pounds of backpack whole traveling. We arrived sooner than expected and Silvia let us come in while the maid cleaned. We talked about places we could visit. Be aware you will have to pay for the tourist tax upfront and in cash to her. And she will get a copy of your passport to check in with the police. She provided shampoo and soap to use. There was a bidet to use, if you ever wanted to try one. There were snacks she provided to us, as well. The colosseum was about a 15 to 20 minute walk from the place. Everything is pretty much walking distance. The place is behind a big wood door and the apartment has a big locking mechanism that made us feel safe. Great, cheap place for us since we were gone all day and only needed to use the stove a bit and a bed to sleep in. Enjoy!