We booked this day trip online through the Dublin Pass. The tour itself was great - it was nice to get out of Dublin for a day to see some attractions. Our driver, Owen, was quiet at the start of the trip and didn't have much to say (although I'm not sure we really drove by much on the way there - it was mostly fields). He was informative otherwise and made a lot of jokes to keep us entertained! I actually did really like that the driver was also the guide.
I would definitely recommend booking the premium cliffs tour vs. the regular one (if you don't have a problem with boats). The 10 euro extra was definitely worth the 1 hour boat ride!
If you are booking through the Dublin Pass you have to call to receive the 15% discount. We have a Canadian phone number and were unable to call, so we did not receive our discount.