Barcelona-born designer Alfredo Arribas collaborated with Verner Panton’s design company to create the organic minimalist look for this well-priced designer hotel. Certain contemporary clichés creep in, like the clear glass cube showers and beds so low that you’re nearly on the floor. But those beds are super-comfortable, and those showers have great shower heads. Lower-level rooms can be noisy with Gran Via traffic, so ask for a courtyard room. Expensive seventh-floor suites feature wood-decked terraces with terrific city views.