I really liked this location and apartment. It's a simple 15 or 20 minute bus ride from Centraal Station, which drops you off literally at their front door, and if you are inclined to walk or bike, there's a very pretty path that runs for 1.2 miles (25 minute walk) from their apartment along a small canal to the edge of the central district, where there's a large plaza with several good coffee shops.
The apartment itself has a very comfortable open living room with beautiful carved wooden furniture and a lot of plants. The bathroom and kitchen were completely spotless. The guest bedroom is small and cozy, mostly taken up by a loft bed with a comfortable memory foam mattress. Under the loft there is more beautiful antique wooden furniture--a small desk and an armoire. I didn't notice any street noise to speak of.
For me, this was pretty perfect. But you should be aware that the apartment is up three flights of narrow, steep steps--very Dutch--and the ladder to the loft bed is also at a steep pitch. If you have mobility or balance issues, or if you're a large-bodied person, it won't be comfortable for you. Also, I didn't find the neighborhood coffee shops and restaurants to be useful, which is fine for me because I cook, but again won't be great for everyone. I would definitely stay here again and would recommend it highly for people who want a bit of a feel for what it is like to live in Amsterdam.