When I was in Dingle last year it was still being built so I couldn't look at it. It is run by the Heaton's son and is next door to Heatons. Knowing the Heatons, I would say that it is a sure bet it is first-class.
Michele, It was more expensive than the others, but we opted for it anyway ---hey, it will be my birthday after all! I'll be happy to report about here when I get back, if you would like.
We would love your feedback on Castlewood. I will be looking at it myself in the spring but there is nothing like actually staying there to see if you really like a place. Enjoy your splurge!