True, it looks fine, but as one review says it's maybe even a touch slower than touch ID v2, which that gif backs up. Which is what some of us have been saying since this phone was announced: it's not the Face ID is or will be bad; in fact it probably will be quite good. But it's kind of a solution looking for a problem. It doesn't seem to be any better than Touch ID, just different. A step sideways instead of a step forward, if you will. Face ID will work better in certain circumstances, and Touch ID in others.
What would have been really killer would be if they had put both technologies in the phone, so that each could be used when it was most effective. But (depending on which rumors you choose to believe) Apple either couldn't make touch ID work under the screen or decided Face ID was so good that they didn't need touch ID. Either way, it seems that we lost the chance for a clear improvement on touch ID, and instead what we got is something that is excellent, but really no better than its predecessor.