Sean's place is AMAZING. It was everything I had hoped it would be. It is out by the Kilmurvy village, but that is what I wanted. Stunning beautiful countryside everywhere you look 360 degrees around you. It is walking distance to the beautiful beach (about 10 minutes) and also to the Dún Aonghasa site (about 30-40 minutes). I woke up early and walked up there and had the whole place to myself, it was magical. It is also really close to the Worm Hole, essentially walking distance, but easier with bikes (you can bike part way, but you have to trek the rest of the way out to the actual site). He also had 2 bikes available for us to use, so we were able to drop our stuff off and head right off bike riding. Delicious hot breakfast to start the day was fantastic. He also arranged transport for us back to the main village so we would be ready for the 12:00 ferry back to Rossaveal.
All in all, I can't recommend highly enough.
Also if you are in doubt about staying on the island as opposed to a day trip, I HIGHLY recommend staying the night. My daughter and I toured all over Ireland over 2 weeks and this was one of the top things we did.