Concierge.com's insider take:
Each of the 50 rooms in this 1825 former neoclassical palace near the Reichstag is the creation of a different artist. Many are young Germans who were given carte blanche to decorate their rooms however they felt inspired to. One covered her walls and ceiling in carpet; another furnished his room with a surreally oversized bed; and still another turned his into a full-room tribute to Edward Hopper, with wall-mural reproductions of the famous painter's works. But compared with the similarly themed Propeller Island City Lodge, the Luise is more polished and less gimmicky—a bed (even when hanging from cables) always remains a bed. The hotel is, no surprise, very popular with art-world types, and if you ask nicely, the staff may give you a tour and let you peek into unoccupied rooms. This is a stylish place, yet it has something to offer even the most cost-conscious traveler: The cheapest accommodations are plain rooms on the top floor with a shared bath.