I have been buying from Fab since October of last year and overall it's been a positive experience. I have made purchases from just about every category including perishable food, vintage clothing and housewares, jewelry, etc. While I agree with other buyers that shipping could be a little speedier, late delivery is not always the case. Keep in mind that on some items, they gather orders and then have the featured company ship directly and this can add quite a bit of extra time.
I deleted the app after they revamped it at the beginning of the year. Its hard to navigate and I find browsing more difficult if I don't go in with something already in mind. I'm still making purchases but not nearly as frequently as I once did.