I got mine a few days ago. The width made me choose a smaller knife design also. I just got it evened up and in a workable format. The particular piece I got (light blue paper) has as lot of voids throughout and is gonna be tricky to use but I have a game plan. A little cyan toner mixed with epoxy should fill those holes and blend with the light blue of the paper in the piece. I'm gonna try it on a small piece and see first, but that's the plan for now.
As far as opinions on the material: Probably needs a little more pressure to squeeze out the bubbles and force the pockets to close next time around. Also a little wider would be good. Otherwise, pretty good stuff!
More after I get bolsters & scales placed, pinned and cleaned up.