My husband and I spent 4 nights. The location is slightly north of the village of Villa la Angostura and you really need a car to make the most of your visit. The Sol Arrayan has a fabulous location overlooking Lago Nahual Huapi, but this is a mixed blessing. The sun beats down on the hotel and creates an hellish heat in the rooms (all of which face to the west), the common areas and the pool/deck (which has zero shade). The wooden deck is curling up from the sun damage and nails are exposed. The building has had very poor maintenance and it actually looked like the place was going out of business. There were only a handful of guests while we were there. I know about the volcanic eruption which wiped out at least one ski season and perhaps this hotel is struggling because of that. There was almost no evidence of ash at the hotel or in the village. In fact, the only place that we noticed it was on our hikes around the area.
The meals at Sol Arrayan are very average and the coffee was very poor. The free WIFI was spotty in our room but very good in the lobby. Our room was clean and a good size.
The staff (especially Paula) were fantastic and tried to respond to any problems that we had. The front desk arranged for us to be picked up by boat from the Quelque Penninsula hike to the Bosque de Arranyanes. This was a very pleasant 12 km walk that ends in a very small national park dedicated to preserving a unique grove of Arrayan trees which only survive in this area. In English, this tree is called the Myrtle. I wish that we had reserved more time to explore the park.
Villa la Angostura is a quiet little resort town with several good restaurants and no nightlife (at least while we were there in November). We enjoyed meals at Del Puerto (specialty is trout al limon), La Caballerrizza and Tinto Bistro (reservations a must). Be sure to have an ice cream at Fruitas de Bosque. There are many ice cream and chocolate stores in town, but this one is the best!