Came today flat packed. Put it together and moved my two week olds in. They seem to like it. one has been upstairs (I put food up there) so I know they can go up the ramp but I don't expect them to really use the top part much. At the bottom I put their heat blanket which I'm weaning them off of. Only turning it on at night for a week whilst adding more hay then removing it. They are indoors so they should still be ok. It's so cute as I can put my hand in the little door and join in the sleep snuggle, stroking their heads and they don't mind at all.