Use the Family Entertainment Kit. As far as I can tell there were no missing parts and the quality of the parts is good. My only complaint is that the assembly instructions only cover 3 of the 10 parts that can be assembled from the kit, some of the electronic assembly parts are a bit vague ie. what cables to use and where, and there are some parts in the kit whose purpose I haven't determined yet. The software loads well and the robotic arm we created works pretty well with my mobile phone. All in all a pretty nice set.
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