I can't stress enough that Matthijs was a Superb host! He was so incredibly helpful with some airline and passport issues I had (not relating to the bnb), and all sorts of touristy questions I've got bottled up. Nice guy to chat with.
As for location, you may have second thoughts as you enter the general (touristy) neighbourhood, but once you enter the street and finally see the unit, it is incredibly quiet. Short walk to either the metro or the main train station.
The unit was clean, spacious, and bright. Would not hesitate for a second to book again next time I'm in town.