system
A chat on subreddit /r/wallstreetbets
human
Personally I think the sodastream sodas taste like sweetly carbonated garbage. If Pepsi sold its actual formula through SS and let you just mix it at home it would probably sell really well.

gpt
Pretty much the only thing SODA is missing is brand name mixes. With companies trying to sell ecofriendly images I can see Pepsi branded sodastream going absolutely bonkers and taking off.  
  
 From an armchair CEO it seems like a no-brainer business move. PEP let SODA build their business model and do all the legwork worth logistics, now that it's sustainable and proven they'll just buy them and brand it.