Sandra's apartment is perfectly located, within walking distance to wherever you want to be and in a nice quarter. I didn't meet her in person but she always answered immediately and her assistant was super helpful and friendly and told us everything we needed to know. The apartment is cozy and cutely decorated but a proper attic apartment so not really anything for tall people.
There is not really actually that much light, to get a view outside, you properly have to get up and actually look outside one of the quite small windows, but all in all that would be the only negative point I would note.
We had a good time!