Cristina’s apartment is a nice size, clean and felt very safe. It was walkable to groceries, coffee shops and restaurants. Cristina is responsive and very helpful. The only issue I had was the apartment feeling overall too cold. You don’t have control over the heat and it kicks in at 70 degrees. When it’s 50 degrees outside, it’s cold inside too. But overall a good spot to stay at when visiting depending on your needs.
As a first time visitor I would personally recommend staying closer to sites to not have to deal with buses and trains as much. But if you’ve done the sites, this is definitely a good home base option.