It's one of those places that will stay in your memory forever. The surroundings are AMAZING: mountains, glaciers, the Viedma lake, the view of the Fitz Roy (cloud permitting), condors, flag-shaped trees, Patagonian skies, you name it.
The grounds are very well kept and inviting, right next to a river (its water is drinkable!), surrounded by trees. The lodge is super comfy, warm and beautifully decorated, the bed super comfortable, and the food unbelievably good and of highest quality, prepared from scratch.
Last but definitely not least, ALL the staff is genuinely friendly and caring, and makes you feel at home.
Come prepared for the wind/rain/snow, though (you can get all of that in one day, including lots of sunshine). That's part of the Patagonia's charm :)
All the walks and horse rides are different but equally spectacular: a guided hike/horse ride to the Laguna Azul (16 km round trip), a guided hike by the lake, a guided hike to the Punta del Viento peninsula (brace for the wind!), a horse ride to the neighbouring estancia Los Hermanos, a guided hike to the Laguna del Morro (24 km round trip)... I honestly recommend all of them :)