[jajko]

I would be seriously concerned about sanitary situation where they grow meat, what kind of we-discover-in-future-it-increases-cancerXYZ-chance chemicals are used to keep it sterile enough.

I wish for this to be cheap effective replacement just like next Joe, but having former GF microbiologist I know how hard is to keep these things sterile even for few days. If there are nutrients for muscle cells, they are useful also for other microbes/fungus. And you literally need 1 tiny microscopic spore to get in, there is no immune system to weed it out, just chemicals that then permeate everything.