Just loaded some 6 BR. rounds with the Sinclair unit I got from 6.5 Shooter,it sure gives you a much nicer feel of the bullet seating with a better sense of neck tension.
A very smooth running piece of kit,quite a difference from a single stage press in terms of "feel" in bullet seating.
I'm sure the K&M is a quality press ,most of their tools are top of the line.
The 21st. Century standard press also with both being in the same price range.
I own 21st. Century tooling,it doesn't get much better in terms of quality and design.
http://www.xxicsi.com/arbor-press.html