I wasn't super impressed with the food here but it was super cheap and apparently that's what they're known for. My veggie burger and fries (I subbed yuca fries for reg. fries) was only $5, which is SO cheap. The burger wasn't anything spectacular (tasted like Gardenburger) but it was good enough. I wasn't a fan of the yuca fries though, they just tasted like chewy, overfried mess. The tostones, however, were delicious.
It seems like everything her (tostones, fries, burgers) comes with a spicy mayo on the side so just ask to not receive that (or just throw it away, but that's wasteful).
The service wasn't fabulous but I guess that's expected with cheap food. The only thing I think you can get super quickly is a Puerto Rican beer, which you can buy from one of the scantily-clad models the company pays to walk around in heels to sell.