Xinyuang Wang playing Schumann, and Eric Lu playing Beethoven's 4th tonight. I have tickets to see the Hallé in action again for the latter, at the Bridgewater Hall on December. I know buggerall about acoustics in concert halls, but I read somewhere that the Sydney Opera House bosses were mightily pissed off when the Bridgewater Hall opened as it is now the world's top concert hall in terms of acoustics, pushing the SOH into 2nd place.
I went to the old Free Trade Hall many years ago (about 45 I think) for some concerts when I was a student, but I haven't yet darkened the Bridgewater Hall's doors.