John Stuart Mill offers us an argument in favor of hedonism

John Stuart Mill offers us an argument in favor of hedonism. (He says it’s an argument in favor of utilitarianism, but it is really in favor of hedonism, more specifically). Begin by stating his argument, then answer the following question: Is Mill’s argument sound?

(A) If you believe his argument is sound,

(1a)
state why you find his argument convincing,

(2a) consider how a smart critic might object to the argument, and

(3a) defend his argument from the critique.
(B) If you believe his argument is unsound,

(1b) state why you find his argument unconvincing,

(2b) consider how Mill might attempt to defend his argument
from your objection, and

(3c) offer a smart rebuttal to Mill’s defense.