We stayed at Hosteria Pampa Linda (about 2 hours out of Bariloche) while our son and his girlfriend stayed at the Refugio Otto Meiling up at the glacier. The hotel was perfect and the dinner was great. It felt like we were in an old-world hotel up in the Swiss alps!
The staff/owners were very helpful and made our stay a delight. We had looked for a hotel other than the Tronodor Hotel since the Tronodor Hotel required a 3- night stay and we only needed one night. (Also the Hotel Tronodor is a 20-minute car ride down the mountain while the Hosteria Pampa Linda is right at the trail-head to the hike up to the refugio.)