Food is great and authentic as it comes so I'm not sure what all the complaints are about? Cash only is pretty clear and listed at the register in case you miss it coming in.
It's kind of frustrating seeing people say that the pad Thai isn't authentic or the food in general isn't. Their pad Thai is different than the Americanized version you typically get these days- it's more sweet as it's listed in the description on the menu... so learn to read before coming here?
Everything I've tried here has been delicious and fresh. They do a great job of changing up the "typical" American/mainstream food you eat and I don't have anything but positive things to say.