We stayed for 5 weeks and loved every minute of the views. The redwood basin is magical whether sunny or foggy. Kareen & Kristen's instructions are great for the first arrival, and we got used to the turns after a trip or two. Note that you can also take Carrol Ave off of Lompico, instead of Lake Blvd.
The house is larger than the photos show in our opinion - 2 large open areas, plus the kitchen, bedroom, and multiple patios. We ate, worked, and read as much as possible on the front deck. A bit of bug spray is needed for the evening mosquitos.
Also the house isn't shaded so it does get quite warm in the middle of the days in summer, but there are plenty of fans and a little A/C unit too. The house was well stocked with extra supplies, including propane for the grill and even some snacks. There is a second unit below that Kareen & Kristen are still working to build out (they check in with you, if they're going to come during your stay).