The Winter's Tale is a lot of things: heart-breaking, exhilerating, funny, beautiful, romantic, profound, etc. Yeah, it's all here. This is one of the bard's best plays, and I can't believe they don't teach this in schools. Of course, the ones they teach are excellent, but I can see high school kids enjoying this one a lot more than some of those others (Othello, King Lear).
The story is, of course, brilliant. King Leontes goes into a jealous rage at the beginning against his wife Hermione. Leontes is very mistaken in his actions, and the result is tragic. Shakespeare picks the story back up sixteen years later with the children, and the story works to a really, really surprising end of bittersweet redemption.
This is one of Shakespeare's bests. The first half is a penetrating and devestating, but the second half shows a capacity for salvation from the depths of despair. Also, this being Shakespeare, the blank verse is gorgeous and the characters are well drawn, and the ending is a surprise unparalleled in the rest of his plays. The Winter's Tale is a truly profound and entertaining read.