Gonna be honest, it isn't great as a game. Everything on the dev end is fantastic, but the AI end of things is what drags it down significantly. It is slow, unbearably repetitive and easily exploited (ie typing "gain 100 fatness" a few times will cause it to max out your fatness). Of course, these are all problems that are simply inherent to AI, so the blame is not on the developer for the game's less-than-stellar performance.
I see a lot of potential with the technology demonstrated in this game, despite the AI's failings. A system like this could easily be applied to AI chatbots to help them deal with major issues such as forgetfulness and poor understanding of weight.
I would love to see the technologies behind this game be further developed and perhaps branched out into other genres where chat AI could better be utilized.