NFC Ring - anyone got one? topic

I've been waiting so long for the NFC Rings to go on sale and now you can pre-order them: http://store.nfcring.com/

Anyone got one already, from the Kickstarter batch? Is it easy to use/worth getting, or is it just fiddly and a pain in the backside?

EDIT: Oh yeah, does it work through a case? I have Diztronic TPU case. If it don't work through that then I won't be interested.