I was around 12 or 13 and saved all my money for a PS2. Found one on eBay (using my fathers account), won the bid, transfered the money and just never got it. No PS2, no money. But I learned very early not to trust people on the internet. Guess that was worth the price in hindsight.

Same boat for me, works great! I got the NFC Yubikeys which work fine with Android.

Does it work? I also have one and it was super easy to connect it to my router and use it. My wife likes to call me on it when my phone is on silent, hard to miss that ring haha.