Opinion on leg machine

[JeffPA]

My place of employment has a big gym with Paramount brand equipment. The leg machine has a ramp you stand on, along with a long lever that has shoulder and back pads.
Plates can be added to the end of the lever. It seems to simulate a squat except you don't fully straighten at the top. I'd value some opinions on the pros and cons of this machine. They do also have a barbell rack. Thanks.

[Mark Rippetoe]

Can you fall down while you do it?