Lotte's place is beautiful and located in an amazing neighborhood with great food options and easy transit to the center of the city. There's a bike rental spot right around the corner, and parks within walking distance. Really enjoyed this neighborhood.
Lotte was also very easy to communicate with and quick to respond with any questions leading up to our stay.
I noticed some other mentions of the stairs, and there are a lot of them! However, it seemed that many of the buildings in Amsterdam have narrow and steep stairs, so this is something to be aware of.