We have stayed in several Idyllwild, Arrowhead, and Big Bear cabins, and this is, by far, one of the most authentic cabin experiences we've had.
The timbered cabin is on a beautiful, serene property and has everything you'd need to enjoy your time in the woods. The kitchen is well-equipped and open. There are dining tables here and on the front deck. The primary bedroom is down a short flight of stairs and has its own vintage bathroom and a deck. Bring a couple camp chairs to sit here or on the small balcony upstairs, which is an ideal place to read a book or watch the jays and squirrels in the trees. The loft contains a lovely bedroom that opens up to a hallway. At the other end of the loft is a mattress and TV. There's even a small washroom upstairs.
The front deck is spacious and has a wooden swing, a dining table, and space to set up another chair or two. One of my favorite spots on the property was the set of Adirondack chairs, from which you can look up to see the top of Suicide Rock (yes, this name does need changing) or a sunset.
The property is not far from town, but the area is at a higher elevation (be aware if you are prone to altitude sickness). The neighborhood is quiet and great for evening or morning walks. Trails are nearby, too.
Kate was very responsive and her rules are logical and fair. The only improvement I can think of is to have a larger trashcan outside. But that's a small inconvenience versus the excellent experience.