One thing I really don't like about Crypto20 is this:

"The liquidation option offers a price floor protection – this ensures the price never drops below that of the underlying assets because of market manipulation. Prices are, however, free to increase as speculative value is created by the high demand for a low-cost, diversified and automated cryptocurrency portfolio that can be held as a single token"

A unit of Crypto20 can be trading at a premium to the actual underlying assets.