We were recommended Maud's icecream by a girl at Sixt and I had also read about it. However all the Maud's we came across along the Causeway Coastal route (Portstewart, Larne, Ballycastle) were all closed for winter. What a disappointment.
A waiter at Harry's Shack asked why we wanted to go there when Morelli's is better? A fair question. They even had Guinness flavour.
After discovering Maud's in Portstewart was definitely closed, we wandered to Morelli's. It was a cold sunny day, glorious for eating icecream and watching the ocean.
Morelli's didn't have Guiness flavour and just looking at the fluoro colours, I would usually be turned off. But there weren't many other options (there was another icecream place a few doors away, but we didn't look there).
Coconut and chocolate were both ok. Not bad by any means, but neither were very strongly flavoured. They were very very creamy in texture.
I'd try for Maud's next time.