Wonderful trip to Ireland spoiled by a crummy Dublin Airport experience on 5/12. Dublin uses U.S. pre-clearence for US bound flights.

1 - Whole process took 90 minutes with SEVEN checks of my passport, yes thats right SEVEN people had to inspect my passport.
2 - Two complete security/xray checks of bags, with one saying we were on US soil (after customs) so they were the "TSA check". Irish nationals did this TSA check.
3 - The EU customs line had less than 10 people in it while the US line had more than 100!
4 - Area past security #2 (US soil?) had crummy services and shopping and the comfort of the area just sucked and was uncomfortable with no lounge access.

Overall, a very lousey way to end an otherwise wonderful trip to Ireland.