[1] For many years after the building's opening, the most exclusive restaurant in downtown Dallas was the Chaparral Club on the 37th floor, and an observation deck occupied the top of the tower.

[6] In 1990, a central tower addition of 25 floors and bay windows was proposed to make the complex competitive to newer projects going up in the city.

At a further cost of $170 million, HBE redeveloped all three towers into one large hotel and built a convention center on the adjacent block, linked by skybridges.

[5] DART's adjacent light rail line and Pearl Station were major factors in converting the complex into a first-rate convention facility.

[9] In summer 2018, the hotel launched another renovation which added a rooftop garden, new entrance and redesigns of public spaces, meeting and guest rooms.