Now that I've put a couple weeks of use on the M6 I have this observation to share:
Do Not use this tape on any work that has a nice finish or is going to have a nice finish. The scribing feature will inevitably scar the wood with a gouge. If used carefully on raw stock it's very handy to mark your work. Especially cross grain. When scribing with the grain the scribe can get lost. As long as you are aware of the potential for nicking your work it's a nice tape. Broad, easy to read, great lock and return.
It's a better fit for carpentry than for woodworking.