Product arrived in under a week in great condition- no smell as reported by others except for a light plasticy smell (which could be expected given the plastic casing).
However, that's where my review ends- because it does NOT appear to be a standard Kensington-shape lock, and does NOT fit my MacBook Pro 13" (which has a standard lock socket).
The metal bit which goes inside the slot is too wide- around 7 mm at its base, whereas the slot is only 6 mm wide.
I strongly suggest checking your laptop's slot before you buy!
In terms of strength and build quality, however, it seems okay.