Bringing a classy-yet-casual vibe to West O, Barnato is a unique foray into flexible entertainment with a shape-shifting identity. It is, depending on the time and day: a chill, happy-hour cocktail lounge with voyeuristic windows onto luxury Bentley sports cars; an intimate live music venue with flawless acoustics and extensive wine list; an after-hours dance club with state-of-the-art sound and lighting; a time-warped, up-scale back room