Product review (3 stars): Tops in form and function but sketchy performance
Got this and the button, the Waste King FOS-4017-SN Fiber Optic Controller Switch, for down-to-the studs-and-floor-joists kitchen redo.  Love the look and functionality.  I had the contractor's guy put a little clear silicone underneath the edge of the button on our quartz counter, so it's tight and looks clean and simple.  Worked like a charm for three months (without heavy use while we eased into our new kitchen) until two weeks ago.  Now, it's glitchy.  Sometimes, it works; sometimes, it doesn't.  Sometimes, the button wants me to stroke it from back to front or it won't start.  Sometimes, multiple attempts fail, then it works if I try again in five minutes.  Then I read the comments here.  Unplugging and replugging the unit worked twice, but not another time.  One time, when it worked, I couldn't turn it off before it turned itself off.  The one failure I read about in the comments that it has never done is turn on by itself.  What I would have given five stars before this now gets three from me.  It will get zero if this keeps up.