To summarize this kit in one word it would be: Awesome!
Kit was extremely fun to build. You can really appreciate the complexity of it, that being said it is not for beginners. Instructions are still very clear, Tamiya quality, just always double check, especially the transmission build. Like the other reviewer stated you do not need the MFC kit as a required item. The kit can run without it. My advice would be to purchase ball bearings for the kit so you don't need to refit later. Use plenty of grease in the transmission and the axles. It's a very fun kit to build with plenty of different ways to set up the electronics (servo's and reciever). Buy it! What are you waiting for??!