A butter passing robot? That seems plausable with the limited command structure of the Boost....too bad the Butter Passing Robot will have no other purpouse than that. Makes you think.
The current reviews are mixed at Lego Shop:
Elsewhere is about 4/5 and I wonder what will Lego do with the theme in future update.
From my experiences of going through the lego shop reviews they're about as reliable as Apple Store reviews so I wouldn't think much of it.