Jesse Green for Vulture is a rave:
"In a season littered with plays and musicals that purport to tell true stories but don’t, The King and I is (as the King often says) a puzzlement. It is a fiction so well-crafted and so profoundly emotional that it pulverizes arguments against appropriation and becomes a form of history itself. Perhaps it is merely history as we would like it to be, but that is in itself an astonishing achievement. In any case, the revival that opened tonight, in a Lincoln Center Theater production directed by Bartlett Sher and starring Kelli O’Hara and Ken Watanabe, is too beautiful to miss. It is also, not incidentally, the best (and probably the last) installment of LCT’s Rodgers and Hammerstein rehabilitation project, which began with Carousel in 1994 and continued with South Pacific in 2008. It’s hard to see how the overfamiliarity that had, over the years, bred a certain amount of contempt could survive this trio of excellent revivals, and in particular the strangeness, seriousness, and loveliness of what’s onstage right now."
http://www.vulture.com/2015/04/theater-review-the-king-and-i.html