well first of all I love this car... its great, i personaly think a TA-04 r is a way better car than a TA-05 stock.
few flaws i have noticed, you cant adjust the rear or front belt stiffness like the TA-05 and other belt bulkhead designs, battery is hard to deal with becuase it is not made to fit side by side packs, I took the plastic things out, and the battery in in, doesnt come out but is wobaly. Thats only what i think about, i actually just replace the belts if i need to, I only really car about the batt.
Good things, easy changing of spur and pinions, un like TA-05, easy maintence to the pully, you can get a double grahite chassis. Comes with the 64 pitch gears stock, TA-05 comes with like the weird tamiya gears...
This car is sweet
i ripped in GT2