First therapy was smooth and was told perfectly executed.  Have a new nickname by the nurses there CHIP THE ROCK, because he doesn’t budge!  Obviously with a machine working in the precision of fractions of Millimeters, staying still is crucial.  Didn’t pick my nose once!  No it was very inenvasive, less so then an MRI or CT scan.  You sit still and the Robotic arm quietly goes about its 20 or so minutes of work.  They even played me music of my choice,  so a lil 70’s R&B kept me smooooth.