hi, I have bought the berobot, I think it's a very excellent product.
I have both i-sobot and berobot. though i-sobot is fun for a while, but I like berobot more because it has very easy to use graphic program software, it also support programming in visual studio (my advanced version package includes VB and VC source codes). besides, I can reassembly berobot as many different types, now I have tried human type, dog type, scorpion type, wheel car type, not like i-sobot only human type.
gestream company design and manufacture all components, including digital servo motors, robot controller, mechanism parts and the graphic software. so while I have any trouble in assembly or programming, they can give me very professional suggestion and explanation by emails. that I learn a lot.
this is their web www.berobot.com
and robot motion www.youtube.com/GestreamTw
the motions are much quick and smooth than i-sobot