Where ever you are boarding, even if it is someone on here or a rescue always always go and see things for yourself what people say and what they do are often different, and pictures don't always tell the full story (only the "best" accommodation may be shown, rather than what your buns will be in) also have a chat with the owner, ask about their vets, what they would do if your bun stopped eating etc etc If they really care they will understand why you are giving them a lot of questions, if they don't I would not leave my bun with them