This is Glenview, in Appin. It's a bungalow, so everything's on one level. Good if stairs aren't your thing. It's detached and sits in its own garden. The garden's just grass, but it's big enough for a dog or kids to run about in. There's plenty of parking right there.
It sleeps six. Three bedrooms and two bathrooms. It's got a 3 Star rating, so it's clean and comfortable, not luxurious. It's open plan inside, which makes it feel spacious. There's a woodburning stove for cooler evenings, and it's got WiFi and a TV.
You're about midway between Oban and Fort William, so it's a good spot for exploring. The coast is right there. If you want to get over to the island, the foot ferry to Lismore is about three miles away. There's a shop, a pub, and a restaurant about the same distance.
For getting out, the official Glencoe to Oban walking and cycling path goes past nearby. You can hire bikes or boats locally if you want. Horse riding is an option too. Oban has boat trips out to the islands like Mull. Fort William and Glencoe are the places for walking or skiing when there's snow.
Useful links for planning: Visit Scotland for Lismore, Glencoe Mountain, and National Trust for Scotland at Glencoe.
Facilities wise, it has a washing machine, dishwasher, bedding and towels are included, and you can bring one dog.