First off, there has to be a better way to tell people where the Dublin pickup point is for these tours. There is no sign, no written directions. There is a location marker on Google Maps for "Paddy's Palace" and if you use street view, there is a picture of a corner brick building with scaffolding. This building no longer has scaffolding and is NOT the pickup point. The actual pickup point is a bus stop just down the street, on the other side of the street, under the bridge by the Trinity Church and across the street from a hostel. There is no sign for Paddywagon, just a pull over for the bus stop. Once your bus does come and you grab a seat, the rest of the day will be much less confusing.
The two day itinerary we did is actually two one-day tours (Rock of Cashel/Blarney Castle from Dublin and Cliffs of Moher from Cork) where you are dropped off at a Bed & Breakfast in Cork at the end of your first day and you get on another bus in Cork the next morning. At the end of your second day, you then transfer to third bus that is on its way back to Dublin.
Day 1 Rock of Cashel/Blarney Castle from Dublin: Our day 1 guide/driver, Alex, was wonderful - entertaining, relayed good information along the way, kept us informed of the itinerary and what to expect, and answered questions, but also allowed for quiet time. Two hour drive from Dublin to Rock of Cashel. Alex gave us our tickets and we had 50 minutes to explore at our own pace. There are bathrooms as well as a small coffee shop and gift shop near the car park. Back on the bus for 1 hour to Cork, where Alex dropped us off in city center with 1 hour to have lunch, explore and/or shop. The overnight folks were taken by Alex to the Acorn House B&B, introduced to the owner, and dropped our bags off - so we ended up with about 40 minutes to eat (we ate at Gallagher's pub by the B&B). Then, a short drive to Blarney Castle, where we were given our tickets by Alex and had 2.5 hours to explore on our own. This amount of time allowed us time to do the Castle (including the kiss - very short line the day we were there), walk most of the closer gardens, eat Gelato, go to the restroom, and browse at Blarney Woolen Mills. It was a very pleasant, not rushed, afternoon. The overnight folks were then taken back to Cork to the Acorn House B&B at 16:30. The B&B is not fancy, but was clean and comfortable with a full Irish Breakfast made early for us so we could catch our bus for day 2 - the pickup point in Cork is right at the Paddywagon office just down the hill from the B&B and Alex must have told us 3 times where it was and what time to be there. We enjoyed a walk around Cork, a nice dinner at The River Club, a drink at the intimate The Library, and a drink and live music at Sin'E near the B&B.
Day 2 Cliffs of Moher from Cork/Limerick: Our day 2 guide/driver DJ had some great driving skills on the narrow roads. He provided good information about the area and fun stories, along with a few jokes, along the way and kept us updated on the itinerary. First stop was at Limerick to pick up more passengers. There was also a refreshment/bathroom stop at a filling station. We arrived at the Cliffs of Moher where DJ gave us our tickets and we had 1.5 hours to explore on our own. There are restrooms, Cafe, gift shop, and exhibits near the car park. After the Cliffs, there was a very short drive back to Doolin to the John P. Holland Center which is the lunch stop. The Center is a cafeteria style serving good soups, salads, sandwiches, desserts, and hot entree items. What we got was good - quiche, ham & cheese sandwiches, salads, and a chocolate cheesecake mousse. There was definitely a variety of items, but this place is your only choice. After lunch, we went to the Burren, where we had a 35 minute stop to walk around and explore on our own. Back in the bus to the last stop, which was 30 minutes at the gift store at Bunratty Castle - the Castle itself is a nice photo opportunity, but you can't enter it. The stop is primarily a restroom & snack stop prior to the trek back to the dropoff. Since DJ's bus was going back to the Limerick and Cork dropoffs, we were left at this stop to wait on a Dublin bound bus with Richard as driver. We ended up with 1.5 hours at this stop. Two hours back to Dublin, where Richard relayed some information about the area, but mostly let everyone chill to some good tunes.
Overall, aside from the confusing Dublin pickup point, we were very happy with our 2 day itinerary. We got both full daytours plus time to explore Cork and a night at a comfortable B&B, which we felt was better for us than 2 separate day tours and the hours back and forth to Dublin. The Cliffs were amazing, but are pretty much the focus of the tour and there is more time on the bus, whereas the Rock of Cashel/Blarney Castle tour had two nice stops and the Cork lunch stop allowed folks to choose their own activity and place to eat.