yeah, kemper used to be up there, but is now definitely among the worst. Don't know what happened to them/who bought them out, but my local sports store has one of their boards and it's, visually, the worst construction I've ever seen...looks like it was cut out, glued together and "finished" by a blind person.
as far as boards I've actually owned, omatic was the worst. Even their top of the line "awesome" was cheap. The so called "sintered" base was really a really poor material that gouged easily and dried out after one day riding. The top sheet started delaming after a week of light groomer riding. It actually rode great, but even a 1 year warranty was really pushing it on those things