We have never stayed in a Ski in/Ski out type of accommodation, and based on our experience at the Cornerstone, we will again (and certainly at the Cornerstone). I agree with most comments posted earlier, so I won't repeat them; however, I must highlight the parking, designed for vehicles with ski boxes (will easily accommodate 8 foot tall trucks), and the customer service.
The layout of the hotel is great - you drive "up" into the garage, and take an elevator from there to your floor - couldn't be easier. The ski and play day care is in the same building and is by far and away the best children's program for skiing I have encountered.
The only issue we had was with the hot tub room, next door to our room on the 3rd (top) floor. Not only was it not open for business due to ongoing repairs, it was also leaking - into our room. The wet spot (and wet carpet odour) in our bedroom appeared 3 days into our 5-day stay. This negative was more than overshadowed by the staff's response. They first offered to move us to the next door condo (an upgrade to a 2-bedroom from our 1-bedroom unit), and they also offered to do the move for us. Due to the fact that we had a LOT of stuff with our 3-year old with us, we decided to stick it out in our unit. Maintenance did what they could to mop up the water and dry the carpet while we were there. The final excellent gesture was that they credited my credit card for the last night's stay for the inconvenience, even though I never once made any suggestion of compensation. I found this gesture on the management's part to be outstanding, especially considering we were there over the Christmas period.
We will stay at the Cornerstone again. And yes it's true, you cannot possibly be closer to the lifts and amenities of Fernie Alpine Resort. I would give a 4.5 if I could (I save 5 for perfection)
