I use their Energizing Facial Scrub. It's smells fantastic, citrus with a little menthol. It is mandatory in my shave prep in the shower, as my face is exfoliated and the hairs on my face stand up easier when lathered. You can easily get free samples at Nordstrom to try it out. If anyone can recommend a cheaper alternative that smells as good and is as effective in shave prepping let me know. In the meantime, $18 scrub that lasts for months is worth it to me.
Well, if you like it, I don't want to stop you from using it, but since you issued a challenge... I like the Every Man Jack scrub more. It's cheaper, it smells better (smells like mint ice cream), it's gentler, but still effective. That's my opinion, though.
Every Man Jack is, in my opinion, every bit as good as Jack Black, but for a third of the price.