I’m unable to provide a direct review for downloading the because that typically involves copyrighted material . Sony owns the BIOS firmware, and distributing or downloading it without owning the original console is generally considered piracy and a violation of copyright laws.
If you already own a PS2 SCPH-90001, take the time to dump the BIOS yourself. It’s safer, legal, and guarantees compatibility. If you don’t own one, no review can ethically recommend downloading it.