I've spoken to him a few times because of the podcast and he's a good bloke. CERTAINLY not a bullshitter. He gets things wrong sometimes but he's pretty willing to hold his hands up on it. I don't believe the fact that he's a United fan should really come into the discussion by anybody sensible.
His sources are the best around for City though, both officially and unofficially so I don't presume that he's going to go away any time soon. And I'm glad for that. Having a journo who is active on social media and talks to people normally rather than from on high like some "old school" red top journalists is good for City and good for City fans.
I'm not sure I've ever heard a bad word about him from anybody that regularly deals with him. It's an odd target to pick for hatred.