The Lenox wrapped up a complete overhaul of its guest rooms in 2014, transforming a style you might call “pleasant high-end hotel” to “dramatic yet relaxing,” in shades of brown and gray with tufted-leather headboards and garnet accents. At the heart of the Back Bay, the Lenox is well positioned to compete with the huge chain hotels nearby, and it delivers business features along with personalized service that its competitors can’t match. This isn’t the place if you need extensive fitness facilities, but in every other regard it’s a great choice.