We had a great stay here. The room was very clean and Kristin left water, juice, jam, milk, and bread in the fridge. There was also coffee and tea. Check-in was really easy, there is a lockbox and you just let yourself in. Check-out is equally as easy. We didn't meet Kristin in person since we arrived late and spent all day exploring the national park.
The area is very quiet and the mattress was comfortable. One thing to note is that there is no heating ( Kristin is upfront about this) and it can get below 60 deg F at night. So if you get cold easily make sure you bring enough warm clothing ( a comforter is available which helps). Also, the door to the shower/bathroom is rather thin so there isn't much privacy in case you care about that.
We would stay here again if we visit Volcano in the future.