In a word - superb! This meal ranks as the best I have ever eaten in Europe. The restaurant is located in a renovated bank: its wine "cellar" is in the bank's vault.
Upon entering, you are shown to a small lounge area, where you enjoy drinks and appetizers. Then you look at the extensive menu, which features a fixed price dinner for 39 Euros. You then move into the dining room to enjoy your salad, main course, wonderful Irish soda bread, two types of potatoes, desert and coffee. I ordered the grilled tuna, which was prepared with Cayenne pepper to perfection. The desert cart had at least 7 or 8 choices, ranging from sinful chocolate deserts to fruitier, cheesier selections. (You could also choose cheese, instead of a desert.)
The service was excellent.
We stayed in the Red Bank House, which is a bed and breakfast affiliated with the restaurant, and had breakfast at the restaurant the next morning. We were able to meet the owner and chef, Terry McCoy, at breakfast, and compliment him on the wonderful meal we had eaten the night before. I was shocked to see him cooking breakfast on a Sunday morning, after a busy Saturday night, but he takes pride in preparing your meal himself.
If you are only going to be in Dublin for one night, it is worth it to travel to Skerries (north of the airport) to dine at the Red Bank.