"Der Eindruck von ihm ist schlecht."
I don't fully understand in what context this sentence can be used. I wrote "His impression is bad" and it was marked correct, but then another correct answer would be "The impression of him is bad".
Does this mean that someone is doing a bad impression of him (i.e. pretending to be him, but unsuccessfully)... or does it mean that he is doing an impression of someone else, but unsuccessfully?