Looks like a very high quality cutter. I usually buy Freud, but I've heard good things about Whiteside (+ they're made in the USA). The time will show.
Pros
Whiteside cutters are made of high quality carbide
Incorrect packaging. The carbide broke. I had to use a hard box. Whiteside cutters are of high quality. Too bad whoever grabbed the beats didn't have the common sense.
Pros
Precision ground for proper balance at high speeds