Although I have not played Black Seas, I have played their other naval game for coastal actions, Cruel Seas, although I enjoyed the few games I played its not a game I have gone back to due mainly to keep looking up the charts for damage, this is not to say Black Seas is too difficult. I think Sails is a simpler system, except for the delayed actions, but these are not difficult either if you use the correct sequence. But this may well be due to my familiarity with Sails and less so with Black Seas, pity you are not here in UK so we could run you through a few games.
Try having a read through the threads on some of the After Action Reports to see games in play