My 15 year old son and I stayed at Dorothy's place for 3 days and 4 nights in August.
This was a father-son trip with a first stop on the big island on our way to my brother's house on Maui. First off let me say that the communication was excellent. Very fast replies to my messages and also very friendly and welcoming. Easy directions and super simple check-in procedure.
You are staying in a local residential area that was very quiet at night. The home has everything you need and more. I can't think of anything else we could have needed that we did not have at our fingertips. We even had the pleasure of meeting Dorothy and her husband which I thought was great. I also met the family that lives upstairs while we stayed. I was outside in the morning having coffee and Marc invited me up to their "Lanai" to check out the view (the lower unit has no view of the ocean, in case you are expecting one). We shared a coffee and exchanged some stories. Very nice guy, I could hardly tell there was anyone living above us. The backyard is landscaped very nicely and well taken care of. However most of our time was spent off property enjoying the Big Island.
I would definitely recommend a stay here especially for the price and the amenities you get. It was especially nice to be able to do a load of laundry before packing and flying to another Island.
The only challenge one might have is navigating the driveway. It is not overly narrow, it is not in poor condition, but it is steep. I would suggest backing down in the daylight so you can drive out. We were supposed to have a compact rental car which I believe would have made it a lot easier to negotiate. However when we checked into Enterprise they gave us a free "upgrade" to a small SUV. The blind spots made it difficult and unable to turn around in the carport area. You will definitely need a small car to turn around, but this is already clearly stated and shouldn't be a surprise to anybody that reads the description.
Mahalo!