Jonesy, I totally hear you. Perhaps not for the same reasons, but Zara and I have never really got along that well. It's one of those brands I almost make myself like them (nonsense, right?) because everyone raves about it.
True, I have recently scored a great scarf there AND some of my favorite basics are from Zara (namely, turtlenecks), but overall I just don't find them reliable when my taste is in question. I struggle with size to start with, I have once been bitterly disappointed by the fabric quality of some cute button-downs and have never trusted them that much again, and I find some of their accessories way too overpriced.
My sister, on the other hand, loves the brand. Perhaps the fact she's 2 sizes smaller play some part as she has more chances of finding something, but when I shop I just don't count on them and everything I ever bought there were just lucky finds.