I also have the Pro version, been using it since it was first released. As Rick stated, values agree very well with LensAlign provided care was taken with the LensAlign process (I know a little about that ).

For FoCal, a stable tripod and lots of light, and then it is nearly foolproof. The target setup feature facilitates alignment. Vibration can be an issue - with hardwood floors, walking around caused issues, moved setup to basement, no more issues. Also, no fluorescent lighting or AC/mains powered LED lighting - incandescent (tungsten or halogen) is the way to go.