>>466740Having your own camping equipment is not a bad idea. Some cabins are free, some are not. Finding a free cabin should be seen as good luck, not something you take for granted. If the cabin is taken, you're out and you need to sleep in your tent.
You're asking if cabins are well maintained? If they are, they are maintained mostly by users. Whatever you do, always leave the cabin in better shape it was when you arrived.