The Park Plaza County Hall hotel in Waterloo's Addington Street opened for business last week.
The four-star hotel has taken two years and close to £100 million to build.
"Park Plaza County Hall will be a big drawcard in bringing visitors and locals back to Waterloo," says general manager Philip Chambers.
"The Spectrum Bar is bright and inviting. The cocktails are divine, particularly 'As Good As It Gets', a mix of vanilla vodka, raspberries and strawberries," he adds.
"And the tapas is perfect for those looking to snack. It's an ideal place to meet friends for an after work or for a weekend drink.
"The hotel is in a busy and vibrant area, within walking distance to many attractions and Waterloo station."
Upstairs from the bar, the Spectrum restaurant is offering starters including tomato and boccacini mozzarella salad with rocket and pesto dressing, and pan fried baby quail with caramelized red plums. Main dishes include linguine with roasted woodland peppers and rocket or grilled rump of lamb with honey and grain Mustard mash potato.
The hotel offers guest rooms including studios fully equipped with kitchenette, living area, work space and en-suite bathroom.
The building also contains six flexible function rooms.