Yeah, it has a king + pull out sofa which works fine for my 6&7 year olds. If we decide to bring our 3 year old, he'll sleep on a couple sofa cushions (it sucks to be the 3rd child!) I was impressed at the ski school for smaller ones at LL so probably will bring our little guy along. That's a ton more space as the Westin Whistler where we normally go, their 1 bedrooms are a tight squeeze for 4 or 5, even with kids this young. US$350 per night for a 700 sq ft suite (and that includes breakfast!) is a killer deal for us.
I also found 5 award seats on Alaska that I can snag for 15k Avios each, looking forward to a precheck/NeXUS enabled flight and the relatively short drive from YYC up to LL as opposed to the grinding traffic of SEA-Whistler on a holiday weekend.