Here is the developer perspective from the PCSX2 team:
Be careful what “new” refers to. If it’s just a installed into an old chassis , the shell may still have scratches. True “new” SCPH-90006 units are rare and expensive (often $200+). This combo is best thought of as “mechanical newness,” not cosmetic. scph90006+bios+new
It does not require the bulky external "brick" used by earlier Slims. Here is the developer perspective from the PCSX2
This is a powerful softmod that can turn a 90006 into a "region-free" machine by reconfiguring the mecha-con (mechanism controller) firmware. Legal and Emulation Use scph90006+bios+new