A: The official Hotfix for E5 (build 5.0.1.124) fixed a bug where metallic threads rendered as black in the simulation view. That is the only "hot" thing you should care about.
Here is a checklist to identify a scam:
Invest in the real E5. Rent it monthly if you must. Buy a used dongle for e4.5. But never, ever risk your livelihood on the dangerous myth of wilcom embroidery studio e5 hot