We enjoyed the services and company. It wasn't exactly what we had expected but we were pleasantly surprised at how enjoyable and peaceful the atmosphere was. Only downfall: Anyone can go in your room at any time as there are no locks on the doors and therefore, no real sense of security. We did not like this aspect but the people in the home seemed trusting for a first impression basis. I suppose we could have kept our valuables in our locked car if we really felt the need but we didn't.
Also, there is only one bathroom but luckily we were not in a rush to leave the home and it wasn't being used by the other 4 people when I needed it so it wasn't a big deal but i could see how it could be. Don't expect much privacy at this guest house; we did find the other guests to be pleasant and not overbearing so that was important but I imagine that if you don't mesh, well, good luck. There is no obligation to "hang" with others but based on the atmosphere and lack of privacy, there is a good chance you will end up doings so. We did not mind.
Petra's cooking is great as is the outdoor shower which she insisted on trying. We were glad we did! If you are lucky enough to get the hot tub to yourself, it's a bonus but I imagine it is a popular aspect of the house so it could be in demand. If you don't mind sharing, that go for it!
We definitely recommend staying at the Hungry Ghost if you want to try something a little different, however, I think the price per night is a little steep for what you are actually getting.