I have only ever used AliExpress to buy very cheap items (stationery, costume jewellery, lunch boxes), and I have had reasonably good experience with all of them. Although all the items may be plastic-y, given the prices they are still much better than expected. I would only recommend buying things on AliExpress that you would normally buy at bargain stores ~ electronics, coats and big-ticket items almost always necessitate going into a store.