Overall, we were happy with our stay. The location is really convenient and just 3 min by walk from the colosseum. Around you will find different bus stops, that will get you to the other districts of Rome.
The check-in and check-out was also really easy and we also got nice recommendations.
We just had a little problem, the heater/AC worked the first night, but was quiet loud, so that my friend had troubles sleeping. After we finally managed to turn it off the second day, it didn't work properly anymore. Even though, Federico and his assistants tried to help it did not want to work anymore. I was sleeping on the sofa, so it got kind of cold during the night. Sleeping on the sofa in general was comfortable though.
Thank you again!