What an amazing stay we had! My boyfriend and I stayed at Sonja's place for 5 days and absolutely loved it there. It's so clean and beautifully decorated. We did not get the opportunity to meet Sonja, but Michael was such a wonderful host - full of personality, funny and so so helpful. He had plenty of brochures ready for us to look over the second we got home.
It is a little out of the way of the city center but there's a bus that runs right to O'Connell's Street right outside the building. So if you don't mind public transportation, I would highly recommend this room. :)