I'll start by saying that Kate is such a warm and welcoming host. I saw another review about having to go to her office to get the key as well as the rental being owned by a business, but this wasn't my experience. I asked Kate if she would be willing to meet me at the Airbnb when I arrived at night time and she was happy to do so (she even helped me carry my luggage up the infamous Amsterdam stairs). Additionally, she lives in the apartment below this unit, so she's just another local renting out her space versus a company that doesn't live in the area. She also offered to let me leave my bags with her when I was checking out, gave me plenty of excellent restaurant recommendations, and was incredibly quick to respond at all times of the day. She's one of the best hosts I've ever stayed with during my travels.
Kate's apartment is in such a perfect location in Amsterdam: close to most attractions and the city center, but just far enough away that it doesn't get too loud or rowdy (pure quiet is unavoidable in Amsterdam). It is at the top of a building with steep stairs, so keep this in mind when traveling (though you're likely to experience the same elsewhere; it's definitely manageable, but be prepared for a little work out). The room has great airflow and huge windows for natural light. The kitchen is great for simple meals, but because of city restrictions there's no hotplate, so you can't cook a meal, which is worth keeping in mind for a longer stay. WiFi was reliable whenever I needed to work and I had easy access to a washer. The piano is an excellent feature and gave me an opportunity to practice while I was away from home.
Overall, I would stay with Kate again, no questions asked. Thanks for such a great visit!