I agree with eirtraveller, the Gold Circle lounge in Dublin T2 is a vast improvement. I had a very pleasant visit there last week. There is a little more detail in my review on www,seatplans.com.
It seems to be a DAA lounge which Aer Lingus use in the short term. Maybe there will be a dedicated Gold Circle lounge in the future.
If only they were to rejoin Oneworld…..