Which SC? I am Xv owner until today no encounter any parts issue also.
If about warranty claim, for sure they will drag for sometime due to approval, but if you got money you can buy the parts at outside anytime.

For people who did not know where to get Subaru parts

Auto Sommet
e-Vanli

Both this at Jalan Ipoh selling official new Subaru parts and also can ship whole Malaysia. (google it)
If want half-cut ask mechanic to intro, those always fix Subaru 1 they will know which half-cut shop got sell.

Std in your head. it's STI

I am driving 2015 Xv until now with over 220k on meter now, if you ask me i can say it is quite reliable if you maintain and take care as usual.
Until today never encounter any serious engine or gearbox breakdown yet.
Only take note are tear & wear items like rear wheel bearing & lower arm bush change (which normally last around 100k)
During 200k only change the radiator cover, water pump/pipings, reseal the top valve rubber gasket.
FYI, this really varies/subjective to different person. As if you drive like a racer and abuse it, the wear & tear items will shorten the life span.