I went to Burstall Lake with them several years ago. I don't have any pictures of the cabin, but imagine a super basic cabin made of studs and plywood. There was a living room type area with a couple basic chairs, a kitchen with a fridge, stove, and dishes, then three bedroom areas with just a doorway entrance but no door, each one had a set of plywood bunks.
The fishing was quite good, lots of 3-6 lb lakers and pike up to 10 lbs with a few up to 20.