We had a great week over Christmas in a 2 bedroom apartment which was more than sufficient for our family of 5 (the boys ages 11, 13 and 14). The living space is very small, but the bedrooms are large enough with plenty of storage plus 2 bathrooms. 4th the kitchen is well stocked with an oven, hob microwave and dishwasher. Theres also a small washing machine in one of the shower rooms which was very useful. There's a ski locker downstairs and plenty of parking available (although we didn't need to use the car). The apartment was immaculately clean and the owners are very nice (their son speaks English fluently).
The Spar supermarket is a short 5 minute walk away and the main ski lift a (good) ten minute walk away, which could be tough with small kids. There's 2 learners areas on the way to the main lift, only a 2-3 minute walk away.
The skiing in Belvedere is good for all levels but can get busy, we found the area a short bus ride up the road at Alba was great skiing and never any queues. The ski bus isn't free (€3 for adults for a day if you are unlucky enough to have an inspector on board! ).
Great skiing in Arabba which is a few lifts around anti-clockwise. No matter where you are the scenery is incredible.
Overall a great value apartment located in a pretty village in the valley. The location is OK and reflected in the price. I would definitely recommend.