I have only been to Flatey once when the ferry from the Westfjords to Snaefellsnes stopped there. But ever since then I've wanted to go back and stay in this hotel.
I've heard many great things about this place! So it is definitely on my list.
Flatey is a tiny island, but I think it is a magical place to stay the night and feel like you have the island to yourself for a little bit.