Brad Warner writes fluidly: "Hardcore Zen" is an easy and enjoyable read. He seems to be teaching a "choiceless awareness" not dissimilar to that taught by Krishnamurti or in the Tibetan teachng Dzogchen or by the Zen Master Bankei.
But Brad does practice and advocate zazen, presumably as a way of helping to keep the mind clear. So although he demystifies rebirth and enlightenment, he holds to tradition with zazen. It's not clear why. Perhaps as a grounding technique, so one doesn't get lost or forget. ButI'm wondering if Brad isn't a radical as he initially appears.
How is it each of us has to find his/her own way and yet its that same selfless way of the Buddha? Amazement and bare awareness may not be enough and one will have to plan, to analyze, to think.
So why not, instead of zazen, just go rest in one's bed for a while each day?
As attracted as I've been to this book, to Krishnamurti, to Dzogchen, such approaches haven't gotten me far. Instead more pragmatic approaches like David Reynold's Constructive Living and Radical Behaviorism's self-management techniques have been useful to me.
Still "Hardcore Zen" is a very good read and it does have fine things to say about rebirth, enlightenment, and the precepts. Go for it.