We stayed at Hellen's place over Christmas for almost a week (4 adults, 3 kids). The house is in a lovely neighbourhood with a few shops just around the corner (including a great bagel place!) and a nearby playground (Eckstein community centre) and was convenient for us to get around to see family.
The house itself is very spacious and was renovated in 2006 so is generally in good nick. There were some toys for the kids and plenty of space for them to play. There is a basement renovation going on which did not end up being noisy and Christophe (Hellen's husband) was very attentive to ensure that it would not. The only issue was that we did not use the washing machine/dryer as these were located in the basement which is essentially a bit of a construction site as we were concerned about getting our washing dusty.
The kitchen is nice and big and the level of equipment/utensils were ok. There was no kettle, but Hellen responded immediately by sorting this out once we flagged this. There is a great reading selection available around the house!
The most limiting part of our stay was the very cautious approach to having guests to the house. Hellen/Christophe's requirements are clearly set out in the listing, but it ended up being difficult for us to feel really relaxed in the house - we were in Seattle for a family reunion and so had hoped to be able to have people drop by as if they would if it were our family home. Hellen/Christophe really did accommodate us as we had a larger than intended group come by one day - we kept in communication with them and they were flexible. However, that was definitely a one-off, so if guests are looking for a more "family house" style accommodation, I would encourage you to talk to them ahead of time but recognise that it is not what they really offer.