I highly recommend staying at Nadia's, when visiting Amsterdam. The communication went smooth, the rooms (bedroom + shared kitchen & bathroom) were tidy, the bed was pleasant to sleep in (I'm quite fussy when it comes to mattresses and pillows) and I found the location ideal. It's a very calm and quiet neighbourhood and only 10-15 minutes to the heart of the city.
Also, the kitchen felt larger in real life then it seemed to be in the photos. Just as a 'nice to know'.