This was my first visit to Haarlem and a friend who now lives here recommended Stempels.
Glad he did: I arrived late so restaurant was shut (no noise - may be a problem ?) so went straight to the room after some friendly check-in banter during which I found out about the past of the building as a banknote press site.
The door to the room is odd in that it was part-glass but a curtain gave privacy. The room was midsize, very clean and with a large queen bed. Furnishings all modern with a PC in your room for you to use (also free wi-fi - well done). Bathroom was spacious and clean with a powerful shower. everything worked. Towels more 3* than 4* but OK.
All in all a good choice also given location behind the main church just off the central square.
Breakfast perhaps not great but adequate - usual buffet system.
Will return esp at €100ish rate.
ps - Really liked Haarlem...worth spending a day there.