I fell in love with this one years ago when I watched it first time, and a revisit didn't disappoint at all. The characters are very well-developed and it's easy to fall in love with them. This most especially applies to Edward James Olmos, who gives a wonderful performance as a stubborn fisherman husband. His son is excessively annoying, and his wife excessively desirable.
What's extra kool about the movie is that the cheaters aren't portrayed like villains, but rather, victims of lust. At the same time, it's still not portrayed as an okay thing to do, but the 2nd-last scene was a little too much.
Of all movies that cover the subject of infidelity, this is probably the best.