Don't be discouraged off the bat. It's a great kit, just as others stated you've got to have your wiring tidy in the cramped space. Other than the Leo2/type 10 it's the most advanced kit tamiya has put out. Saying used to be, if you've put a Pershing together all the other kits are cake. As with all the tamiya tanks the instructions are well thought out and illustrated.
Also remember to read through the electronics manual as this tank has the "neutral" throttle setting. You have to trim up/down on throttle then push the throttle stick full which ever way you trimmed, then stick and trim back to neutral to put it "in gear" otherwise you'll hear engine noise but not get any track movement. Take your time and have fun with it, you're going to be extremely happy with the end tank.