10/10. Perfect. Literally. My wife and I loved our stay with our infant with us. Elaine was one of the most helpful and friendly hosts that we have had. We did not have a car, so here is a bit of info for those who would do the same:
The bus stop is a brisk 30 minute walk away.
An adult bus fare to Killarney is €4.30.
A taxi from Killarney will cost about €18-€19.
The Beaufort Bar and Restaurant is about a 25 minute walk and serves INCREDIBLE food.
Kate Kearney's Cottage and the Gap of Dunloe is about a 1 hour walk.
My wife and I did all of these walks with a 3 month old baby and had no problems, even at night (though we did have a torch).