When it comes to vintage stores, Qcumberz is near the bottom of my list. It's a lot of, frankly, junk. Of course, to each his own but more often than not I leave shaking my head thinking, "oh yeah, this is why I haven't been here in so long."
That said, they have some unique items that are definitely not in the same vein as the other shops on Melrose. I can see when this is good though, like I said, for me it's been a negative. If you've got the time though, feel free to check it out. You can definitely do worse.