Many lifters learn the bench press from powerlifters. And powerlifters certainly know a lot about it. But remember, their goal is to lift the most weight possible for one rep, and they often use special lifting shirts.
If your goal is to build size as well as strength, and you lift raw (without a stretchy lifting shirt), then your pressing form will be different. Here's a quick video lesson.
They're both assets to my training programs. Indeed, I've used kettlebells for years with success. And Pavel? He's a good guy. I definitely consider him a friend and a juggernaut in the strength and conditioning community.