Daniella's place is highly recommended for female solo travelers.
Location is only one bus stop away from Sloterdijk train station that connects to Schiphol airport and is close to city center by tram/bus/metro (public transport stations are only a few meters away). There are cafes, restos and grocery stores around the neighborhood as well.
My room was very comfortable with thoughtful design touches. And although there were other guests staying in the other rooms, I never saw them so there was still a feeling of privacy.
Daniella is also easy to communicate with and helpful with tips and recommendations on where to go and what to do in Amsterdam.