Peulla (not Puella) is a wonderful, amazing, atonishing, breathtaking place. Staying there, however, requires a infrastructure because there is nothing around and the arriving there only happens by boat (catamarã), crossing the marvelous Lago de Todos los Santos. That means one depends on that catamarã, once a day to get in and out Peulla and needs a hotel service (or some other service, but there is not other service) to spend some time in there. They offer some very good programs around the park and they are really special. More, the guides work very well, they are kindly, friendly and make the whole thing to be very, very pleasant and funny. And that is all.
The hotel itself is very old (103 yr old), but well maintened. However, it is not good. You can "smell the years" in the bedrooms and bathrooms, there is no frigobar, no heather control by the guest, and the service is very very very poor.
The restaurant folks is not ready for many people (that happens when people crossing to Argentina stay for lanche), they are unkind to you and food is not tasteful. When there are only a few guests it works better, but not really good. And that food is really expensive.
So, go to Peulla if you want to visit a real sanctuary of the nature. But go back the same day. Do not spend the nigth in the Peulla Hotel. It doesn't pay what you will pay for. And there is no need to stay, unless you are traveling somewhere else (to Argentina) and have to cross there and spend the night. Again: there is absolutely nothing to do there when the excursions are over.
But , I still have to say they have another hotel (Nature), just next door , that is about 3 or 4 yr old, looks very good and confortable (there is elevador...), very well decorated, not smelling (I come in for visiting) and, of course more expensive. Can't tell about the service or food but, maybe, it can be better. The owner is the same, but it looks much better.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.