I reject utilitarianism, so the repugnant conclusion doesn't apply to my ethics. But one can accept a form of utilitarianism that rejects the repugnant conclusion, for example, average preference utilitarianism.
I just reject utilitarianism on the grounds that you cannot actually compare or aggregate utility between two agents (their utilities being not actually comparable on the same axis, or alternately being in 'different units'), and on the grounds that human behavior does not satisfy the logical axioms required for us to be said to have a utility function.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.