We were lucky to discover Marialuisa's place for a trip to the Dolomites with my family of 4 and my parents. The house is clean, quiet, comfortable, and equipped with everything you may need. The kitchen has a large dining table and a kitchen island that can easily accommodate a larger party (we had my siblings and my kids over for dinner on a few occasions). The balcony offers spectacular views on Val di Fassa and the road is far enough from the house to keep it very quiet: you're more likely to hear water flowing from the nearby creek than car traffic. The fact that there's no wifi in the property was also a perfect excuse to reduce screen time.
Mazzin itself is a lovely little town, way less crowded than nearby Canazei, Vigo or Pozza (probably due to the pandemic, Val di Fassa was packed with tourists when we visited), but it's conveniently located to explore the valley. A grocery store and a tourist office are within walking distance and there's ample public parking space, trails that start right behind the village, and easy access to the pedestrian and bike lane along the river. If we return to Val di Fassa, we'll definitely consider staying at Marialuisa's place again.