The grand hotel is accessed via a spacious entrance hall that has glass sliding doors and is served by hotel porters who offer a pleasant welcome. Inside, the lobby has polished marble floors, a large reception desk, and double escalators that lead down to access the basement shopping arcade and the  Hanzomon metro line. A dramatic chandelier installation covers the ceiling in twinkling light. This large communal space has a handy foreign currency exchange machine and plenty of seating beside the check-in area. The hotel is popular with both international couples on vacation and business travelers, both groups looking for upscale rooms near the city's major sights. 

The Royal Park has a wealth of attractions on its doorstep: everything from metro lines to restaurants to shops. A convenient on-site passageway takes guests from the hotel lobby to the Hanzomon metro line. Modern Japanese paintings and sculptures  are on display at the Watari Museum of Contemporary Art, an 18-minute drive away. A walk though Kiyosumi Garden, a four-minute drive away, can serve as a relaxing break from the city. The Imperial Palace, at the center of Kitanomaru Park, is an 11-minute drive away. Tokyo Tower, which can be seen from the hotel, is a 16-minute drive. For those traveling for education or business, The University of Tokyo is a 15-minute drive away. The Buddhist temple of Tsukiji Hongan-ji is 10 minutes by car from the hotel. The Royal Park hotel is about a 20-minute drive from Haneda Airport and a 53-minute drive from Narita Airport. 

Rooms at the Royal Park are split into Standard and Executive floors. Rooms on the Standard floor are relatively spacious, at 26 square meters (280 square feet) for a Double Room, with a larger double bed or twin beds and a small seating area. Rooms have tiled wooden feature walls that are slightly dated, dark wooden furniture, and large windows that brighten the space. Beside the bed there’s a built-in alarm clock and radio. All rooms have work desks with leather executive office chairs. Near the window, there’s a separate armchair with an ottoman and a glass coffee table. In-room facilities include an LCD television, refrigerated minibar, electronic safe, and a kettle. Wardrobe space, sleepwear, and a clothes brush are found in every room. En-suite bathrooms have white fittings and gray floor tiles. A clear glass door separates the wet room area with a separate plunge bath and modern shower. Trays of essential toiletries (including toothbrushes), hairdryers, and slippers are a welcome addition. Executive Rooms have access to a lounge with free drinks, buffet breakfast, and a late checkout service. Deluxe Executive rooms upgrade to Bose Wave music systems, a coffeemaker, and L’Occitane bathroom products. 

The Royal Park has a full range of features. With six restaurants, there are plenty of dining options, including a variety of Japanese and Chinese cuisine. A teppanyaki restaurant with rooftop city views serves a lunch and dinner menu of seafood and Wagyu beef. On the fifth floor a peaceful fish restaurant overlooks the Japanese garden, provided a relaxing setting for daytime and evening meals. The large Chinese restaurant and a small sushi restaurant offer guests further choice. The coffee shop (on the first floor) serves meals throughout the day, including an American-style buffet breakfast for a fee. There’s also a delicatessen, and two bars on the first and basement floors. Banquet facilities and private dining rooms are available for weddings and functions. The hotel’s fitness club is a real selling point with a full-sized indoor pool, including a whirlpool and relaxing loungers. A well-equipped gym has cardio machines and a fitness room for classes or private instruction. A beautifully landscaped Japanese Garden with live Koi Karp gives this communal space a tranquil atmosphere. The beauty salon offers a variety of La Prairie skincare treatments. In the hotel basement a shopping arcade sells clothes and souvenirs. Free Wi-Fi is available throughout the hotel.