This is by far one of the coolest experiences we have had in an Airbnb! Now, the castle is accurately described and does have some water and spiderwebs, BUT the kitchen was spotless, linens super clean, and we never felt like we were camping. Our whole group loved the house! I have no idea how they made it modern, but they did!
We had two grandparents with us, and the first floor bedroom was very accessible. It's right when you open the door. All they had to do was climb to the living room/kitchen. We also had our children (4 and 7) and they did just fine and loved the top floor bedroom. There's a very nice churchyard you can walk to across the street. Very easy to get to several small towns and Kilkenny nearby. Just all around an amazing experience! Highly recommend!