Mr B and I were fortunate to cruise out of Antwerp on one of our best ever cruises. We had also stopped there on a river cruise. Wonderful memories, both!
When we departed on Symphony, in the middle of the night, I snuck out of our deck seven stateroom to go outside and view our turning around in the river. I can reconstruct the quiet, chilly, dark surroundings, as if it were yesterday. Actually, I just looked it up. Pushback was 5 am!
Indeed, your city is outstanding.