The rehaut seems quite good, the case is thick like it should be, the space between the correct looking He valve and the case edges is perfect... and the crown sits high enough in the case... not so low as all other rolex reps (except the vintage MBW 1665).... so the basic are quite good i'd say.
Of course several flaws need some adjustments and for the price most of these superreps cost i think our Chinese friends may solve the flaws before offering the SD for sale