The description is a bit misleading in my opinion. There is a private bathroom, but it is not in the cottage itself, but next to it (one needs to walk out), and it is kinda rusty and moldy.
The cleaning was not great, some of the bed sheets were obviously stained.
The description also missed info about dog, which was running pretty fast and was jumpy. I was personally ok with that, but my wife was very scared. Visitors should also be aware of very rainy weather, which I have heard is normal in this part of island and invasive species of frogs (Coqui), which during night make a lot of noise.
The awesome part was the fact that we could do laundry, and that Volcanos NP was very close.