Hi - yes you have access to the Wilmslow Lounge. You just need to show your boarding card for the DUB - MCO portion of your flights. It is nice in there but not as nice as the Dublin Lounge. It was our first Aer Lingus Business Class flight last November and we didn't know what to expect but we were very pleased with everything. We are doing the same route next week - really looking forward to it - and have two further flights booked.