This was my first time visiting Tir Na Nog. I can sum my experience up by saying that it was okay, the food was good but I won't go out of my way to return. I did not like the fact that buffet was not well attended to. At any given point, they were always out of SOMETHING and you had to bring this to the attention of the staff. A few times they were out of clean plates so guests were standing around waiting to go through the buffet while plates were being washed and brought out.
The omelets were amazing. The bacon on the other hand was extremely under cooked. I did not eat any for fear of getting sick.
I would suggest this place for a large group because they seem to have the space.
Personally, I will continue on my quest to find the perfect brunch spot in Raleigh.