Is Stellatech a reputable hardware supplier
 

I wanted to order some replacement USB doors for my N9 (mine already broken; my wife's bent and will break eventually). I ordered 4 from Stellatech, and noticed they also stock other replacement parts for the N9 and N900. The parts lists usually claim the parts are original (i.e., Nokia) parts. Is there any way to confirm if this is the case? Does anyone have experience ordering from them? They appear to ship all over the world.