i did some resurch regarding Leaf. it is an Israeli guy. as much as i know the Leaf is targeted to grow cannabies and thats their marketing strategy.
they are in eraly stage of designing and i couldent find any video showing a prototype functioning.
conserning Grobo their only reference is that Leaf has a bigger growing space and that it seams Grobo will be more expensive to buy.
they haven’t released any supply/shipping date for their product.
as an Israeli, i take them seriously and i asked them for information but still (more then a mounth now) did not get any response.
continue the greate work you are doing and accelerate the efforts to ship Grobo as the first to be commercial will conquer the market!
all the best.