I had a great stay at Elza's place for two weeks. It's a lovely cozy and quiet place, with great access to the city via tram, and close to WestergasFabriek. I was there for two weeks and it was a great base to have. Neighbors are quiet, the street is quiet also, and all in all highly recommend.
The only issue I had was that (being a shorty) I couldn't reach the oven/microwave which is installed at a very Dutch height, however that may just be a problem for me. Other than that all of the other amenities in the flat worked fine, and it just meant a bit more fresh food cooking.
I got really fast responses and answers to my questions, and I would happily stay there again.