As you might expect, there's some fine print to consider. For one, purchasers of the "pass" will actually receive a special coupon every day the promotion is running, but those coupons expire at the end of each day so you won't get away with trying to stock up and cash in on 54 cheap burgers on the last day. Additionally, the coupons don't cover combination meals, sides, or beverages, meaning you'll have to pay more if you want a drink and fries. The good news is that they do apply to any entree item on Smashburger's menu, so you don't actually have to eat a beef burger every day -- you can mix it up with chicken sandwiches, turkey and veggies burgers, and a variety of salads depending on your mood.
It's also worth noting that you're not getting a free meal, just a heavily discounted one. If you take full advantage of the deal, you'll end up paying $108 altogether for the promotion ($54 for the pass and $1 for each of the 54 days you stop by to redeem). That said, when you consider the average price of a Smashburger burger is $6.70, you'd save over $250 if you took full advantage. In fact, you only need to go 10 times over the course of the promotion period for it to be worth it.