We had cabin 18 which overlooks the lake. And what an awesome view it was even though still frozen. The cabin was superb - the bed big enough for three or more ;). A real log fire (obviously UK 'elf and safety hasn't discovered Canada). The breakfast was good but the evening meals were superb. Excellent cuisine and service.
Only negative points were that the cabin wardrobe space was limited and the bathroom was tiny. They also had the weirdest shower curtain that made me feel I was showering in bed.
But these were minor issues and anyone considering staying at the awful Fairmont in Lake Louise should stay here instead. Unless you like a Disney/Las Vegas inspired hotel.