Have you been to Dublin?

My children and I are looking for tips on travel in Ireland. Have you been there? Did you rent a car and try driving on the left side? We will be traveling from Dublin to Cashel on the week-end and are considering renting a car but don't know how dangerous or scary it might be for 3 American women who are ingrained with driving on the right side.

Comments and suggestions welcomed!

Thanks,

Alice