I work as a bartender and occasionally have to open that bottle of wine or two a shift. This corkscrew is not that great. My main complaint with this item is that the screw is actually pretty dull especially once the black coating is put on it. Because of this, the corkscrew mostly mangles the cork and leaves it a mess once you're done opening the bottle. It is nice that the part that catches the lip of the bottle is semi hinged but the indented portion is pretty flimsy at actually catching the lip. My final grievance with this item is the knife on it. The serration is nice but the catches on the knife make it hard to fold out and the fact that the knife is placed at the top just really annoy me. Just a personal preference but it doesn't interfere that much with the functionality of the knife. But in all honesty, this wine tool isn't all that great and I've had better and sturdier ones for much less than what this one is sold for.