A good freshly-baked croissant should be flaky and crisp on the outside, and tender and moist inside with all the dough aerated and evenly baked. There should be no layers of unbaked dough ...
Or, in highly technical pastry speak, the croissant dough is "waffulized". Quite what the French will make of such a crossbreed is another matter, but there's certainly a lot of excitement ...