I have same tank, I am happy with the recoil and sound ,not perfect but hey cannot complain, the only thing that I don't like is track recoil is to strong, and the control not as good as Tamiya control scheme, Heng Long 6.0 have the option to change track recoil strength and Tamiya or HL/Taigen/Torro control scheme,
If cause if you want you can always upgrade with aftermarket solution, but it gonna cost you.