I posted a great review of Paladar Marea this year on my blog - now I am hearing bad things about it from knowledgeable people.
http://flyingcigar.de/startseite/havana-2018-hole-in-the-wall-paladar-marea/
Update 07 Sept. 2018 :
Looks like the Cuban Paladar disease of "earn 500 CUC today and lose 5.000 CUC tomorrow has affected Marea in Miramar.
Good and knowledgeable friends lately have reported shitty food, frozen Tuna and bad culinary experiences there.
I spoke today with a group of Scottish friends who had dinner last night there and they reported it was terrible as well as expensive.
So be warned - might have been taken over or the cook has been "kidnapped" by higher earnings somewhere else - happens frequently in Havana .... ?
Nino