As she said, it's sort of middle of the road quality. It' not going to fall apart for a while, but it also won't stand up to abuse, last forever, or... you know how some really fancy clothes just feel more luxurious?
It is adequate quality, and what I like is that you can really count on that. I've never come across any one piece that was significantly better or worse quality than anything else. You know exactly what you're getting into.
(With my usual venue of thrifting, that reliability is just what I look for in a store like this, because if I'm going to spend more, I want to know what I'm spending it on.)