Apartment was incredibly clean and well appointed when we arrived. Lots of natural light and a nice little balcony overlooking a peaceful courtyard. It did not have open closet space however, so we basically had to live out of our suitcases for a few nights. No big deal, though. Also, the bathroom has no sink nor a mirror. So shaving, brushing teeth, taking out contact lenses, etc. had to be done in the kitchen sink. No problem at all but worth noting. Bed was very comfortable.
Location is ideal. De Pijp is a vibrant area very different than the city center. It is much more residential and 'local' oriented. There is a pedestrian only street nearby right on Sarphatipark that has a dozen or so restaurant/bars that seemed to all be filled all day and night, mostly by locals. We loved it so much that we stayed in the neighborhood for the first two days. Also a great coffee shop in that area (Katsu). Biking into city center only took about 15 minutes.
Claire was very professional and communicative as a host. Only downside was we had to wait until about 5:30pm to check in in order to get the keys from Claire in person. Wasn't a huge problem for us, but important to note in case you arrive early on a week day.