FF. I have yet to hear a legitimate argument against her. "She's a pro-Assad homophobe who loves Trump and the alt-right!!!!" is not a legitimate argument...or factually correct.
Every political rater (such as DW Nominate or ProgressivePunch, etc.) rates her as moderate, not even in the top 100 most progressive members of the House. That is a much more common argument against her than the one you claimed, and it's a legitimate criticism.
Having said that, I won't hesitate to vote for her if she's the nominee. I wish we lived in a world where everyone who liked any of the 15 (and counting) Democratic candidates would say that about all of them.