so whilst I don't use this ring every day (because it doesn't open doors) I have now had plenty of experience with it. Its fantastic to wear to the beach for example, because you can buy stuff and not be carrying about a wallet which can easily be stolen if left at the beach whilst your swimming.
In day to day use I have noticed the following.
1- It generally works well.
2- Its always a conversation
3- sometimes people think you are hacking them.
4- older readers or readers that are very scratched up, like touristy areas, near the beach often don't read well. I have had to take the ring off and place it on a reader once, to get it to read.
5- if it doesn't work first go it usually takes 3 (weird I know)
6- when it works first go, you completely own it and it feels cool. Its not so cool when it takes 3 goes.