Lance is a Marketer. That's not a bad thing! Yes you can learn from him, yes you can do this. Yes there is a follow up boot camp, live and in-person, yes there are costs that are...well, slightly glossed over, like: you need an LLC, you'll want to buy insurance. Yes, you'll get that money back and then some, but be aware of the actual costs before you dive in.
What’s the catch? None, really. Cash back apps act as affiliates for many online merchants, which means that whenever you make a purchase through one of the apps, they get a small commission — but then, they give you a portion of that commission as “cash back”. For example, if I buy a pair of Nike shoes through the Ebates app (or website) and spend $75, Ebates may get a $10 commission but then they’ll pass $7 back to me. It’s basically a way to get sale prices on stuff that isn’t on sale!