Very good, very good.

Very satisfied. The car rental desk at Dublin Airport was easy to find, located within the airport. The procedures were straightforward. When we asked if there were any fees for taking the car to Northern Ireland, they assured us there were no extra charges (unlike what the website said about daily fees in euros). After completing the paperwork, the shuttle bus arrived quickly to take us to the parking lot. The staff helped us load all our luggage into the car.

Vehicle exceeded our expectation Enterprise staff in Dublin were delightful friendly and efficient

Booking platform was easy and simple. Easy rent cars were unable/ not interested in any assistance to alter our booking but very pleasant about it. Enterprise were very helpful with changes to our booking

See comment above.

Like: the person who helped us with our pick-up was friendly, patient with my questions about driving, and even willing to answer questions about tourism.
Dislike: after checking in at the terminal and taking the shuttle to the lot, we hopped out of the van and were not directed to the right place. as a result, we ended up standing around inside at the desk for another 20min before someone ascertained that we had already checked in at the terminal, and that we only need have talked with someone directly outside the van that dropped us off in order to get our vehicle. why had that not been clearer to us, we wondered? we also thought it would have been good to mention the park-and-pay system before we left. i googled ahead of time but didn't come across it. instead, the advice given to us by the Enterprise employee was to use parking lots, which is ok but only half the story. eventually, we figured it out, but it would have been a good tip to give.