We are debating between attending a concert at the Mirabell Palace's Church or the Marble Hall. As anyone attended either or both and can give us insights into which one will better quality?
We attended a concert at the Mirabelle Palace. We were not in a church, so I guess the room would be the Marble Hall. I believe the artists change regularly, perhaps nightly. When we were there, it was a string quartet, with an oboe added for a few selections. It was very good. Whether it is the quality you are seeking, I do not know.