The rotation mechanism is something hakelig, but I suppose that is the done over time.
The vise is rubbed both the mechanical parts, as well as on the surfaces thick with grease. He is protected in any case well against corrosion.
The package, however, is really deficient. The simple cardboard box - no Styrofoam or other upholstery materials - transportation has not survived and had several holes. This has the vice inflicted no harm, but that you could make sure better.
Bottom line, but a good, durable product.