I love Gilliam but imo this is one of his weakest films. My main beef with it is that not much happens in it, it seems repetitive.
Also it is often illogical (ie. does not follow the fantastic logic already established in the film)
Agreed. Waltz's character is just too aloof and annoying to give a shit about him, or why he's waiting for his call. Not too relateable from a protagonist perspective. The film is basically him being bothered the entire time by other people when he just wants to work at home.