We loved our stay in Tim & Robin's boatshed - it was incredible waking up to the sound of water lapping at the shore and to be able to see it just outside our window. It was a unique experience and the ease of having access to kayaks, paddle boards, etc was really convenient and allowed us to truly experience the island. It was also nice to be able to use the outdoor bbq area to cook over hot coals and grill meats.
It is worth flagging that with such a beautiful outdoor experience you are inevitably going to find a few spiders along the way but the stay well outweighs this. I'd recommend bringing repellent and a torch.