Hans really went above and beyond expectations. He had the place ready for me 3 hours before official check-in time, when I arrived on an overnight flight and really wanted a nap. (Previously he said I could leave my luggage in a locked storage room and wander around, which would have been fine, but this was so much better.) He gave me a full tour of the apartment and its various controls, and left a detailed info sheet along with local resource guides. He included a complimentary bottle of wine, some beer, and a tin of butterscotch candies, which was a delightful surprise. He checked in via the app several times during the week, and was very responsive to requests.
The apartment is in a quiet residential neighborhood, but an easy walk to the train station and anything else you might want to see/do. There's a bus stop at the end of the block, but I didn't get full use of my transit card, because I ended up walking everywhere.
I wholeheartedly recommend Hans and this apartment, and will gladly stay there again the next time I'm lucky enough to be in Amsterdam.