It’s all about the vibe at RH Rooftop, the sleek restaurant perched atop the new, expensively stylish store formerly known as Restoration Hardware. Step off the elevator and you’re transported to an airy, transparent dome full of banquettes, chandeliers, and greenery, along with a spacious open-air pavilion. The menu aims for savory American classics, not reinvention, so you’ll find dishes like a roasted half chicken, a lobster roll, and a shaved ribeye French dip. A decadent chocolate-chip cookie satisfies the sweet tooth. Reservations at prime hours can be elusive, but they’re easier to get if you’re willing to dine with the early birds.