Faultless service; sumptuous designer furnishings and a sense of fun to boot—this impeccable hotel breathes new life into the cliché "thinks of everything." Yet the epithet is really quite apt. A "whatever, whenever" button on the bedroom telephone connects you with helpful, amiable staffers who provide exactly that. High-tech gadgets are everywhere in the beautifully decorated black-and-white rooms; some are split level and all are gorgeously furnished with extraordinary pieces from every corner of the globe. All have exquisite bed linens, feather comforters, and luxurious marble baths. Even the hotel entrance is unique: an elevator sweeps you up to the fifth-floor lobby, where you can relax on a buttery leather couch in front of the fire while you're checked in. Perhaps the most appealing thing of all about this place is how perfectly it balances real luxury with genuine warmth and hospitality. What other London hotel will let you sleep until Sunday afternoon and still have breakfast waiting when you awake?