We stayed in cabin behind the B&B for a week in August 2012. The cabin was exactly what we needed for our stay. The cabin was cosy with a full kitchen (proper stove), a double bed, and a bunk bed in another little room, which our daughter slept in. There is also a little garden to relax in, and parking right outside the cabin. Even though we had full self-catering facilities, we were delighted that breakfast was still included in the price (in the main house). Breakfast was plentiful - always home baked treats, fresh fruit, cereals, juices etc.
Just across the road is a large grocery store, and you are just one block from the main street in Banff - so easy walking distance to the tourist office, restaurants, shops etc.
Even better, it worked out around the same price for our family of 3 to stay here in our cute cabin with breakfast included, than in Banff Youth Hostel! Of course the cabin is not high-spec luxury - but that is also reflected in the price. The owner, Karin was very helpful and friendly. This was our favourite place to stay during our month trip around the Canadian Rockies. We would definitely stay here again if we ever get the chance to return.