Mazzo is a comfortable and roomy apartment for a couple, in a great canal side location. We stayed for 5 nights.
Ground floor entry (5 steps down) beats climbing several flights of "ladders" like elsewhere. Keypad lock eliminates key exchange and carrying or losing a key. Comfy king size bed delivers a restful night's sleep. Shower has plenty of pressure and hot water. We used the washer/dryer to start the next leg of our trip with fresh clothes. Kitchen was handy for quick breakfasts and snacks grabbed at the nearby organic market.
Location at the picturesque intersection of 2 canals is an easy walk from the train station, even with luggage. Be sure to use the "shortcut" bike/pedestrian bridge by the Ibis, then under the street, to avoid traffic, crosswalks, trams and crowds in front of Centraal. We walked to/from the station upon arrival/departure, for the train to Zaanse Schans and Haarlem, for the ferry across the IJ, for the tram to the museums and to meet up with a tour. Also found great restaurants/bars every night by strolling the canal ring and the Jordaan. Sat out front on the bench for cocktail hour a couple evenings - lots going on, chatted with friendly neighbors - but all was quiet by bedtime. Location, location, location - A+.
One hiccup. The apartment wasn't cleaned yet when we arrived at 18:00 on a Sunday night. It was supposed to be ready at 15:00. The owner's team responded quickly and things were made right by the time we returned from dinner at 21:00. Luckily we didn't need to wash up or change before dinner. I guess it was a busy weekend for the cleaning crew. In any case, Michiel & Henry responded quickly to that issue and another request of ours. Good communication.
We really enjoyed our time in Amsterdam, in no small part due to Mazzo's great location, comfort and the owner's responsiveness. We will definitely stay there again if the opportunity presents itself.