Well, I had to call and get a new gift card as after day 14, the original one did not show. I called them on Monday and they got out a replacement card ASAP, which arrived Saturday. We were able to activate the registry without issue. We logged out, attempted to search for ourselves, it worked fine. Then we made a small purchase for ourselves of the $10 Fantasy Dollars, so we can see how the system works for others who will use it and it seemed very straight forward.
As a buyer, we got a confirmation notice of the purchase, we marked the purchase "Private" and when we look again, no one else can see the purchase or comment, but as the honeymoon couple, we can see who purchased it, and any messages posted with it.