In my experience, it's worthless marketing hype.
I signed up with the promise of getting ticketmaster presale tickets to a local show, but the link didn't become active until several days late.
Unless I wanted to drop major coin on "VIP" packages, the seats were no better than I'd have gotten on general public sale.
I just logged in to the site, since I'm a member.
There are exactly two short "exclusive" videos and a small "exclusive" photo gallery.
Oh, and you can watch "Life On 4 Strings" again.
Whoopee.
There's no blog.
No uke lessons.
No forum.
Right here is where it's at for that stuff.
Don't fall for it.
Jake's a lovely guy, but this is not something he's gotten heavily involved in.
Go see him and line up after the show, or buy merch off his regular web site.