We thoroughly enjoyed our stay in the Barn. It's in a great location very near to the back entrance to Ashford Castle, which also has lots of beautiful walks on the grounds and spaces for picnics etc. It's very close to Cong village, and about 45 minute drive to several places, eg. Westport / Galway City / Spiddal.
The Barn itself is very cosy, has great wifi, all you need to self cater. We looked forward to getting back there at the end of the day. We had our 1 and a half year old girl with us and no issues, there is a child gate on the stairs and she didn't get into much trouble :) Would fully recommend for a peaceful stay in an area with lots to do.