Waid has certainly been following the "progressive" kind of mentality that has been trendy in recent years (Meaning that he constantly insults CIS white males and people who disagree with him) which is pretty fitting considering that he has always been a hotheaded guy who didn't have any problem to start fights with other people, even his own fellow writers for basically anything.
That being said, one can't help but notice how in many of his stories women often throw themselves to the heroes, become easily infatuated whenever the heroes kiss them and even become obsessed with them which are probably not the most respectful portrayals (I personally just find them completely obnoxious and derivative).
About the topic, I have mixed thoughts. For one and despite of Waid's love of the character, he never had the best result at writing Superman. Sure, there's nothing particularly bad about it but nothing I would call it exactly "great". Not to mention that he has a pretty mixed track record recently, his Daredevil and Archie were great but there's also incredibly mediocre stuff like his Hulk, Black Widow, Avengers and Champions.
I would definitely try his Superman if he's given the chance but my expectations are not that high.