Like many hotels in Bangkok, design is slick at the Citadines, and from the outside, the gray minimalist structure with slats cut into its facade stands out from the old school office blocks surrounding it. The small lobby is decorated in sleek black and white shades, from the long reception desk to the flooring and couches to the two iMacs siting on a counter near the glass entrance.There's a newspaper rack, but the look is sparse -- it's an apartment hotel and long-stay guests are the ostensible demographic of this hotel, though clientele runs the gamut, from party-going couples and solo travelers to families and business travelers. The hotel is within walking distance of Bumrungrad International Hospital, and the hotel also draws medical tourists convalescing after procedures.

Citadines Sukhumvit 11 Bangkok is located in the heart of Sukhumvit Soi 11, which is one of Bangkok's top party zones, home to famous clubs like Levels Disco and the renowned Q Bar, jazz bar Apoteka, and many more. Bistros, pubs, and restaurants line the street, and it's one of Bangkok's most happening spots. It can get noisy at night, and the Nana red-light area is not far away. While quite safe, those with fainter hearts may find some of the sights and wares at the Nana Night Market a bit risque. The hotel is less than a 10-minute walk from the Nana Skytrain station and bustling Sukhumvit Road -- the hotel does operate a free tuk-tuk shuttle to the station. Villa Supermarket is down the street from the hotel, and there are plenty of convenience stores nearby. Bumrungrad International Hospital is an eight-minute walk west of the hotel. Don Mueang Airport should take around 30 minutes to reach by taxi or car, while Suvarnabhumi Airport can take up to 40 minutes depending on traffic. 

The 127 rooms at Citadines Sukhumvit 11 Bangkok range from Studio Executive Rooms to Two-Bedroom Deluxe Rooms. The look across all categories is sleek and modern, with light wood laminate floors, simple metal furniture with glossy black surfaces, and a gray, steel blue, and white color scheme. Wall art is large and abstract. Designed for long-term stays, rooms area spacious, with the smallest starting at 30 square meters (323 square feet). All rooms include kitchens or kitchenettes, which come with stove-top ranges, microwaves, toasters, full cutlery, glasses, pots and pans, and kettles. One- and Two-Bedroom Deluxe Rooms have full size refrigerators with freezers, while Studio Executive Rooms come with mini-fridges. All rooms have irons and ironing boards, humidifiers, safes, flat-screen TVs with cable channels, and DVD/MP3 players, and free Wi-Fi. Bathrooms embrace the same minimalist quality, with chic light blue tiling and walk-in showers (though some units have shower/tub combos). Rooms above the studio category have separate living rooms, though we did notice a bit of wear on furniture.

Citadines Sukhumvit 11 Bangkok has a small, narrow rooftop pool, with a few lounge chairs on one side. Adjacent to the pool is the fitness center, with about a half-dozen weight and cardio machines, and free weights. Facilities also include a coin-operated laundry room. Mulligan's Irish Pub off the lobby serves pub and international fare all day and evening -- it also has a small outdoor terrace facing the street. Breakfast is also served here, but is not included in room rates. There's a business corner in the lobby with two iMacs for guests' use. The hotel operates a free tuk-tuk shuttle service to Sukhumvit Road and the skytrain station, about a five-minute ride. Wi-Fi is free throughout the property.