The first thing I noticed is that the plastic rivet do-dad in the middle of the turntable kept falling apart when I first put the TV on top of it. After several tries in which I would place the unit under the TV and the turntable's middle rivet would pop out, I eventually figured out that the TV has to sit in exactly the right spot of the swivel or I ended up scrambling on the floor looking for the detached plastic rivet do-dad.

The best way to make this work - use two people. One person lifts up the TV, the other one slips the unit under it in just the right spot.

Anyway, I've had the turntable for a day or so and it seems okay now. I recommend buying the swivel only if you have some patience with this kind of thing.