Shack stack, crinkle cut fries and a vanilla shake. Definitely delicious as a midday lunch to give you energy going through the strip. Would say that the only downside is fighting others for a table.
I wouldn't say this lived up to the expectations of being a super amazing and best burger, but it's not bad and I'd revisit if I were in Vegas (or NY) again. I still think I'm a bit more partial to In-N-Out b/c of the price point for a no-frills burger with fresh veg.