What made William Henry Harrison a bad president?

I think it's more than a little harsh to describe William Henry Harrison as a bad president. After all, he was only in office for all of thirty-one days before succumbing to a virulent strain of typhoid fever that he most likely contracted on the day of his inauguration.
Because of his untimely death, Harrison was never able to make his mark in the nation's highest political office. As such, he hasn't gone down in history as one of the more notable occupants of the White House. But then again, the sheer brevity of Harrison's tenure as president has ensured that he hasn't gained the reputation of a bad president, someone who did great harm to the country. The truth is that he didn't have enough time in office to do much good or bad.