I general I like the improvements over the T3, I'm not in love with the shape of the chassis but if it works what it looks like is of little importance. I do have serious reservations about the motor mount though, the motor it still being held on by two screw but they are closer together and the motor is being held in only one axis, there is much more leverage on those screw is now, I think at club level where there are a lot more hits we will see bent motor screws and stripped spur gears.
Bb