What I don't like about Levin is how much of a self-promoter he is. Back in his CRTV days (and now with Blaze) he constantly plugged his gig there while on his radio platform. He also routinely brags about how he was right about things in the past or the first person to saying things that nobody else - even other conservatives, said or were right about. I tune into his radio show once in a while but his ego-driven personality is just too much for me most of the time, even if I often agree with his points of view. I also find him to be a bit of an opportunist disguised as a principled person.
All of that said, he's done a better job at completely dismantling the Mueller Report than anybody else I've heard attempt it.