We just did Sandoval Lake Lodge, for 3D/2N. Very much enjoyed it - and probably would have been better for 4D/3N given that day 3 was nothing more than leaving.

SLL requires a 3KM hike from the river to the lake; no gear (porter takes your gym bag, which is all the luggage you get), but you still have to hike it. If it's rainy, the trail will be a godawful mess (they supply rubber boots).

At the lodge, hot water is plentiful, but electricity is only 10hrs/day. Food is adequate. It's no Hilton...but you're there for the nature, not the nurture.