While many enthusiasts are satisfied to listen to that, there's one primary drawback for Batfleck enthusiasts... Ben Affleck was once expected to make his final Batman appearance in Flashpoint. (superfans.website)
The primary drawbacks of sub-debt financing include the fact that (1) interest and principal payments are contractual and must be met regardless of the firm's financial position; (2) the loan may place restrictions on the company and its management; and (3) the use of debt may reduce the value of the equity. (entrepreneur.com)
Currently the primary drawback is not in managed futures themselves — I believe they provide diversification benefits because of their low correlation to popular asset classes — but that ETF and mutual fund options are limited in the managed future space. (scottsinvestments.com)