I find him likeable. But I don't think he's going to be the Dems strongest candidate. I believe the winning candidate will be the most opposite to Trump.
On the other hand ... HRC lost because Comey and the FBI cast doubt on her candidacy just before the election, and because Putin helped Trump in key battlegrounds. She wasn't a spectacular candidate, but she was way better than Trump and should have been the winner. So it isn't altogether damning to be HRC 2.0.
We saw in the midterms that Trump and the GOP are incredibly unpopular.