It would be opinion. Theres no for sure way to tell it was "Too Long." Someone could think it wasnt to too long, do you understand what im saying?
Answer:
Explanation:
Formal: I am afraid of that place, he is a strange sort of person, don't worry child
Informal: That place gives me the heebie-jeebies, that guy is a weirdo, take a chill pill, kiddo
Hope this helps!