I just watched Jennifer McGuire's video on layer dies. The cards she created are beautiful as always.
However, I wouldn't invest in the dies since they are too expensive, and IMHO not very versatile.
Plus, after all the layers (5-
are assembled and added to a heavy weight cardbase makes for a pretty heavy card.
I'm glad to see her design a mini slimline card (3 1/2 x 6 1/4). I've been making that size for years.
https://youtu.be/ydY7agIVSr8