Patrick's flat is tastefully decorated, the amenities are superb, bathroom and shower area is large and spacious, and the large windows allow for a beautiful ambience inside the studio apartment. I felt very safe. The building is centrally located. Restaurants below are fantastically convenient but in the summer months create a little bit of traffic in front of the building. Typical to Amsterdam housing, there are two sets of steep stairs that you must climb up to reach the front door (a challenge with luggage) but this is nearly unavoidable in the city - not a negative point, just wroth mentioning for disabled guests.
Overall a 5-Star experience, thanks in part to Patrick's lovely hospitality, and a larger than expected studio in such a prime location.