Joe Biden is not my ideal candidate. I much preferred Pete Buttiegieg. In fact, Joe was pretty much the lowest on my list of people that I wanted to see win the nomination, only slightly above Warren (she's not electable, let's be honest here).
However, I still happily voted for him. While I don't really care for him as a candidate, I do think he will appoint qualified people to positions. He will act less like a lolcow on Twitter and more like a president should. He will put forth effort to doing what we can about climate change and the environment. He will listen to scientists on covid. He will appoint someone who actually cares about education to the secretary of education position. He also is familiar enough about the Senate where, even if Republicans take control, he might get a few things done.
And not to get all cheesy and such, but having a qualified VP that is not just a woman, but a woman that isn't white is huge. Now, little girls and young women have someone to look up to. Young black girls have a woman that they can admire and know that they, too, could become VP or president some day.