I wonder how far the trials have gone ... to proving that with a shot of this drug we don't need the rest that sleep gives us. Reviving the mind is one thing, but resting and renewing the body is something else altogether.
I would be afraid that students and people wanting to work long hours to have the money they want (or need) might use this to renew their minds, and then take their bodies to the breaking point.
I don't think there are too many short cuts in nature!