This would be a complete dealbreaker for me, even without all the other things that this service would share from my profile. I would never want there to be an easy way for people from the dating site to be able to find me on another site - you can shut down a dating profile or discontinuing using the service if someone's bothering you, but with this it sounds like complete strangers would be able to find/message me on Facebook outside of the site's control, and I wouldn't want to stop using Facebook because of some creeper. And if it's using publicly available Facebook data, it means I need to make a ton of my information public and accessible for the service to be useful.
That's not really worth the risk of using the service to me, and is probably why you don't frequently see dating sites that reveal full names/near-exact locations as you're suggesting. If you can find a way to display Facebook profile details without revealing the person's full name, you'd probably have more luck recruiting people.