We were very surprised by the lodging; based on the airbnb commentary and ratings, we expected something different. What the reviews get right is the quality of the host; he's a fun, engaging and accommodating guy. Also, the bed really is very comfortable. What the reviews get wrong is the "quality" of the lodging itself, as well as the general environs. It was less "holiday" and more "Appalachia."
The house is clean, but the odor of mildew is very strong. This is a problem for us, as it might be for others. The house lacks climate control, which is not a problem save for the generally damp climate of the Coromandel. Mildew may be inevitable under the circumstances. But again, not what we expected as it had not been mentioned in other reviews.
The house itself is of interesting design, but we say a little on the "wild" side. There is not much that separates the outside from inside. It's a little tumble-down and quite unpolished. The outdoor facilities are good enough, though challenging in the dark (it's very dark at night). None of that is a problem if it is what you expect.
From other reviewers, we expected something different; more polished, possibly some climate control, a more equipped kitchen. If what you expect is a stand-alone version of a studio hotel room, this is not your place. If you find it fun and interesting to live a little "old-fashioned" (outhouse, outdoor shower, no oven, no microwave, not a lot of electricity in general, etc), then you can't beat the value here. We adapted to the odd sink, the four burner countertop propane "stove." No oven, but a toastie grill made good garlic bread and the hotpot supplied plenty of quick and easy hot water. If this were what we'd been expecting, we'd have given it higher ratings.
Perhaps the most important ratings are the value and the qualities of the host. They are super. The rest, just be aware of what you are getting. Shop around; you won't find anything as functional as Pine House for the price. Just be aware of its realities and willing to deal with them.