First, Tom is awesome! Check out Nemesis The Imposters for examples of awesomeness. He sabotages the Batmobile and crashes the Bat-Computer. He invents the devices by which he shafts Batman. Yeah, I know it was Dick, but Bruce built the tech and Tom took it down.
Took. It. DOWN!
Speaking of which, he is as brave as Batman but is not insanely driven, which means you are not going to have the same clash of personalities.
You want other examples of awesome - I will graciously provide them. He breaks up with Wonder Woman. BREAKS UP WITH HER! Why - because he does not just think with his penis, and has a set of values he lives by. He is also a character of great depth - he knows his not good enough for her, and it haunts him. He is funny, charming and lets be honest - sexy as hell!!! How many times did Tom have his shirt off while he was in the book? The simple answer is not enough!
Tom Tresser as written in Vol 3 was, IMO, the perfect rendition of a real guy in a super-hero world. Batman is so far beyond the average human being he might as well be called a super-human, but Tom is one of us. And its no coincidence that Nathan Fillions's work in the animated movie was very much the voice of Steve Tresser.