The first was to the Cliffs of Moher (a 2-hour stop there). Chris, our driver, was great. A born stand-up comedian, if there ever was one. And, he was incredibly informative. Lots of other stops, pictures, etc.
Mike, the driver for our second trip was also great. We went to Connemara National Park for 3 hours. There was an option for that or for Kylemore Abbey. Again, lots of stops.
Both trips were well organized. You leave from Kinlay Hostel, which is centrally located just "below" Eyre Square.