The detergent for dishes is provided. There is a lounge and dining room. There's showers, toilets but very rarely are there baths. It is not usual to have an ensuite. But at the newer house, each room had an ensuite.
All backpackers have a laundry facility with washing machine and dryer.
Some of them are coin operated. I brought my own laundry detergent. You either buy a small bottle to take travelling with you or some backpackers sell small packets of washing detergent. If they lock up at night, you can find out the combination or key if you plan to come in later. You should keep your food in the kitchen.