I booked this flat for my parents who were visiting me (I live nearby, but my studio is too small to host them), and they were absolutely enthusiastic about it. The location is central (10-15 minutes by foot to the Opera house and Bellevue) and the tram and bus stations are just out of the door. You have a wide choice of supermarkets and eateries at few minutes walking distance from the place (the closest one is 100 m from the building), and the lake shore is exactly 500 m away. The apartment was squeaky clean, had all the necessary appliances, kitchen gear, and a new TV. My parents travelled alone, but in principle there would be room for up to 4 people. Seefeld is a lively neighbourhood, but gets quiet at nighttime so your sleep doesn't get disrupted. This properties is definitely a top pick, especially for couples or families with one/two kids. Surely I'll book it again (as long as it's available) next time my parents visit me in Zurich.