I put this on my wishlist over Christmas because I was interested in it, but unsure about it especially with the high price tag. I did end up receiving it as a gift and have mixed feelings about it. When it works, it's pretty fantastic for a quick and easy two factor authentication. Far easier than using an app and having to type in a code fast enough before it changes.

However, that's only when it works ... for best results you'll need to use Chrome. In firefox U2F is disabled by default, but even when you search the web for how to enable it some sites will not work. Most notably anything Google. It isn't that Firefox doesn't work, it's just the Google blocks it (you can change the user agent to 'fool' the website into believing you're on Chrome and it will work fine).

With the NFC feature, I haven't been able to get it working at all. Apparently you need to use Chrome, which is not something I'm willing to use on mobile (they don't allow extensions, so no adblock). The NFC support is the only reason to buy this version of the Yubikey.

I wish more websites would add support for this, it's far more secure than SMS based systems and easier than app based systems. No one can 'hack' a read-only device that's in my pocket. I wouldn't really recommend it at this time, and certainly not this version of it (the NFC enabled Neo).