Just adding a bit more information that may help other potential purchasers now that I have my new Defiant.
As Mutley stated, the build quality is excellent with very little flex anywhere. The entire case (including underneath) appears to be metal so not sure where the plastic comes in unless it is the keys. The (metal) keyboard is comfortable to use although I think the clicks on the pad could be a little more defined. Personal preference. They work OK and I invariably use a mouse, anyway. The pad itself feels fine.
My only gripe so far is the poor volume on the speakers.