Three years ago, Nikita Santches was just some young guy coming into our offices to hype his pies, which he slung up at Rust Belt Market for years. Then, late last year, he opened his Rock City Eatery in Hamtramck, in the former Maria’s Comida space. He did it just about right, adhering to a punk rock ethos that stripped away anything that smacked of cost, down to an almost coffeehouse atmosphere, with tables, chairs and plates that don’t match, particle-board wall treatments, even a few couches. It’s as homey and down-dressed as the bearded hipster clientele. And it’s rocking, alright. There are pictures of Patti Smith and Iggy Pop, and the sound system cranks up the Ramones and the Clash. As the reader’s pick for “Less than $50” would suggest, though the surroundings are laid-back, the menu is a bit pricey, with expensive sandwiches and small-plates fare — but with surprisingly affordable craft cocktail choices to keep you noshing.