Original sentence: The hall was completed in 1982
Edited sentence: Built in 1982 the Hall proved to be a tricky and remarkable building.The Hall has proved to be a success, as since it opened on 30 August 1982 (on that first day 21,000 people flooded through the doors) it has attracted high profile world famous performers from all over the globe and also earned itself a reputation as one of the premier concert and conference venues in Europe and the world.The Hall's acoustics are highly rated for unamplified orchestral music, while a new sound system installed in 2005 has solved previous problems with amplified sound.There were fears that St David's Hall would be hit by the opening of the grander and more spectacular Wales Millennium Centre in Cardiff Bay;  these fears have been partly realised