By what standard? The script is filled with great lines. It’s dazzling and as much fun as you can have watching a great film. And virtually every shot is Welles showing off in some way. He was an illusionist in his spare time and it shows.
Go watch The Third Man which is basically 30 minutes worth of plot jam-crammed into an hour and a half, or better yet, Touch of Evil [possibly the worst major film ever made] and get back to me on what a "great storyteller" Orson Welles was.