I can't find the link, but I think Craig mentioned that he was looking into them.
I don't think he has posted a review yet, though.
At first glance it looks very good. Did you look at the fact sheet? I like #7. No crisis-based cash settlements.
Things I like:
1. The geographic diversity (because of things like natural disasters).
2. Institutional diversity (instead of just holding gold in one ETF, or one bank, or in your house, it's just nice to have another option).
3.. It at least sounds like it would be easy to get the bullion delivered without any hassle, need be.
What I wonder about:
1. In a worst case scenario, how safe is the gold? i.e., does it offer the privacy of the Swiss banks of old (I doubt it).
2. As always, what are the IRS reporting requirements? (Probably you have to report it).