First & foremost a special thanks to Louisa. It was great getting to know her.
As for the place itself, its a cozy hut, just as described. It reminded me of my time during childhood in countryside. Away from the buzz and city noise, you get to see and hear the real sounds of nature. Its a nice calming experience to sleep with wind blowing under the trees, sound of ocean waves nearby and croaking frogs :) Make sure you bring along some flash lights as it can be very dark especially on no-moon/new moon nights. The house is located next to HI-137, a beautiful road hugging the eastern coast of big island. Its a beautiful drive anytime and we went out to the beach during sunrise for all the 3 days we were there. Louisa has recommendations for some nice hidden spots out there so make sure to check with her! If you plan to visit or hike the volcano park, there is a 2 hour hike with the trailhead just about 10 mins drive from here. The main NP itself is about a 45 mins drive.
Overall, a wonderful getaway on big island especially for people visiting the volcanoes NP and just about anyone looking for a quiet cozy getaway amidst nature :)