Seamus was a great host who knows Cashel inside and out and gave us an in-person rundown on what to see and do in the town when he met us for check-in. The place is spotless, modern and efficiently furnished. The beds were exceptionally comfortable and there were some unexpected little amenities for an AirBnB like anti-fog bathroom mirrors. There's a cute little private backyard area and views of The Rock from the front yard. The master bedroom with en suite bathroom is spacious and comfy, the other two bedrooms are effective if on the smaller side. The living/dining room seats 6 no problem. Though it contains most items you'd need (range top, small oven, espresso machine with pods, kettle, dishwasher) the kitchen is definitely outfitted for efficiency, with a small fridge and limited shelving, so don't expect to be able to store a lot of food for a longer stay -- but it was perfect for our two days in Cashel.
That said, if you're visiting Cashel you're not going to sit in an apartment and the location of this unit is prime. The Rock of Cashel looms over the town and is spectacularly visible as soon as you step out the front door. A leisurely stroll up the hill will bring you to its ramparts. Seamus provided free admission vouchers for our party of 6, which was much appreciated (though in fairness, you'll be offered these at many places in town if you spend a few Euros). On the far side of The Rock is another interesting ruin worthy of exploration, Hore Abbey -- and we actually considered the ruins of St. Dominic's Abbey, right next door to the AirBnB, a fascinating atmospheric enhancement. There's great food steps away at Cafe Hans or Mikey Ryan's. Our only regret from our stay was that we didn't make it over to Seamus's award-winning local pub, Billy Foley's.