it's a subscription magazine! I get a new pack each month, it's going to take 18 months all in all but it's a fun build and the final product is an adorable robot which speech recognition and so on, you can get the info on the deagostini website they have started running it in many countries now!
for me it's around £57 a month? and a pack you get a month is 4 build parts (it ran weekly in japan so they condensed it to a larger monthly one in the west) you also get some accessories like a charging dock and such later on.
all in all of you have the spare cash a month i'd recommend it it's been really good fun to build so far and the magazines have nice articles on robotics.