Poll: Do you use Fingerprint Scanner on your smartphone?

With the release of new Nexus smartphone that comes with fingerprint scanner (although it's hardly the first one with this feature) I had a though - do people actually use scanners?

I haven't had a chance to use fingerprint scanner on any phones, so I don't really have any serious opinion other than that it looks not very comfortable to use. However that opinion is not based on any personal experience, so it's hardly useful.