Question Best Lodging Options in Patagonia?

Hello - I'm planning a trip to two national parks in Patagonia in December: Los Glaciares and Torres del Paine. I'm looking for recommendations on where to stay. I prefer places that are comfortable but not too pricey, and ideally with easy access to the parks. Has anyone stayed in eco-lodges or local guesthouses in these areas? Any hidden gems or places to avoid? Also, how far in advance should I book? Thanks for your help!