Maria's place is spotless, great location and the rooms absolutely beautiful. Shower pressure was excellent and plenty of space.
Unfortunately, I've never visited an Airbnb anywhere in the world where the breakfast was mandatory to be eaten. Myself and my partner awoke at 9:10 to the host complaining to another guest that we hadn't gotten up for breakfast (which we could hear through the floor) and then shouted up the stairs at us to come down and that the food was 'going to be wasted'.
Embarrassed, we want down for what was little more than croissants, fruit, tea and toast. It pushed our morning schedule off and my partner and I were stressed getting out of Killarney as a result. It was highly inappropriate for me to have paid over 100 euros to have relaxing weekend away from work and then to be shouted at like I was son who was late for work.

Maria seems like a lovely person and has many stellar reviews but if you're looking for privacy and relaxation, this is not the place to stay from my experience.