The movie looks sharp overall (a few grainy spots) but for an 18 year old movie it still looks pretty damn good on blu-ray and the sound is superb, thundering of the classic shoot-outs is top-notch in blu-ray.
My complaint is that this is the theatrical cut of the film and not the extended cut. While there's nothing too significant cut out, aside from the scene where Doc basically dumps Kate to go on the Earp Vendetta Ride there's one scene in particular that I wish they had left in; when McMasters responds to a parlay by the cowboys and Ringo asks him to re-join with them, when he refuses, Ike sticks a shotgun in McMaster's face and says "Just one question, how you gonna get back to them?" Then the film cuts to where McMasters has been dragged to death behind a horse. Without this scene I found McMaster's death very random as we saw him moments earlier at the Hooker ranch with Earp and the others, then all of a sudden he's dead, being dragged by a horse? Bwah?
Aside from that scene, and the previously mentioned "Doc dumping Kate" scene, I don't think there's anything else left out. So just know this when you buy this movie on blu-ray.