It seems that if the goal is to diversify, there are plenty of other options. That isn't to say that this one is bad, but I'm deeply skeptical of any investment once the press starts running articles about why you should buy into it.
Yeah; "diversify for safety by buying this one particular thing we're doing our best to make wildly popular" strikes me as disingenuous advice. "Diversify by holding a portfolio of small, mid, and large-cap domestic and overseas equities, ETFs, bonds, real estate, and other assets in proportion to your risk tolerance and investment horizon" seems to hold up better with a year's hindsight.