We had a very comfortable stay at Kirsten's loft-- it is large, stylishly appointed, clean and in a location convenient to the Vondelpark for running, and a very easy stroll to the main museums. We were met promptly on arrival and throughout our stay Kirsten would respond immediately to texted questions.
The loft is truly a loft, on the 4th floor of a very tall Dutch house-- the stairs are steep and narrow (typical for every house we saw), so be aware that getting large suitcases to the top can be a challenge. Travel light. Also, the apartment is quiet all night but the area is under the flight path to Schiphol so from around 8 AM on you will hear planes coming in for a landing.
The bathroom was large and full of light. As noted in the picture, there is a tub and hand shower but no curtain, so you have to shower sitting down if you don't want a bath.
The kitchen was more of a microwave and two burner hot plate in an alcove off the sleeping area. It's suitable for making tea and coffee, but cooking a meal would be a challenge. Not that we wanted to cook--Kirsten had great restaurant recommendations and we ate very well at her suggestions.
All in all, we loved our stay there and would be happy to go again.