Yet another fail in my eyes.
Regardless of his acting ability (I liked him in the recent Renfield), he looks way too young and not intimidating in the least. I had to look him up. He's 33, but looks like he could play a college aged young adult in his early 20's. He's got the Tom Holland problem. They look a good 10 years younger than they actually are (Tom Holland can still pass as a teenager).
Nothing about this guy screams megalomaniacal billionaire narcissist, the popular modern iteration of Luthor most fans love.
Why can't we just got a proper Lex Luthor? It looks like again the DC animated Man Of Steel and various other animated movies will still have the superior version of Lex. The only positive take/win is he's not race or gender swapped. So surprisingly there's that. And he's still far better than Jesse Eisneberg, hell just about anyone would've been a better choice than him..