HELP! mediocre optional essay, to submit or not to submit?

<p>mediocre optional essay, should i submit or no?
its over 500 words, about 690, do you think that's all right?
i heard for other schools unless your additional essay is amazing, submitting is worse than not submitting, iss that tru for harvard too?</p>

<p>Are you submitting optional essay?</p>

<p>Don’t deliberately submit anything mediocre to Harvard. Quality, not quantity, is what impresses Harvard.</p>

<p>If it’s mediocre, why not fix it?</p>