I am from ballinasloe as you probably have guessed. I know ahascragh pretty well and know some people form there. Its a small community, not much in the way of amenties and will be a big change from Naas. It depends what u are looking for. There are good secondary schools in Ballinasloe, as 1975 has said u are not far from galway but far enough to not want to travel it everyday. People are friendly and still living the country life so if thats what u are looking for, ahascragh is as good a place as any.
Maybe u should consider renting a house in the area for a couple of weeks during the summer to get a feel for the place as I still have a romantic very of summers at my grandmothers houses when I was a kid when the weather was always sunny etc...
There are some good sports clubs in the area especially Caltra Gaa club which recntly won the All Ireland Football Club title