I tried twice to get a working scale through Amazon.

The first scale I received would not power on.  Like another reviewer reported When I took the little plastic bit out of the battery compartment nothing happened except the batteries got REALLY hot.  This is an internal short somewhere in the circuit board.

So I sent it back and ordered another one (there is no "exchange" option -just a return where they credit you 2 days after they receive the return.)

The second scale would turn on but the display flickers.  The blue background light turns on but you can't read the numbers.  They sort of ghost in and out of view.  If you squeeze the case just right or tap it sometimes the numbers appear and then fade away again.  I thought maybe the unit just needs to warm up but after about 30 seconds it auto shuts off.

So out of 2 tries both of them were defective.  I'm not trying for number 3.  Even though it is a free return just the PITA of having to box it all back up, print out a return label and standing in line at UPS I should have just bought a better scale in the first place.

My theory is that the way it is packaged they fold the little hook up behind the case into a little self-storage slot.  In order to get it to fit into that slot the packer has to really squeeze the unit because the linking bit isn't quite long enough -this might damage the unit just folding it up.  So maybe after manufacturing the scale and testing it the person who packs it into the plastic bubble breaks it by folding the hook into the back by yanking on the bottom too hard.  It's just a theory -but I am not going to WASTE any more of my time ordering and sending back a long line of plastic broken junk.

I will give it 2 stars as there is a possibility that this thing might actually WORK if you get lucky.  It's all about how much time  you want to waste sending them back until that happens.