Disclaimer: I have never used a BP/W. I know next to nothing about BP/W, other than what I have read on here.
Having said that, I will say that it just doesn't look right to me. I can see the simplicity and the adjustability. The reasonable costs of purchase and upgrades.
What I cannot see is the comfort. How in the Hell can a metal plate strapped across your back, with a heavy metal tank strapped to it, be the least bit comfy? I have read enough posts from most of you guys to trust your opinions...but I just cannot comprehend it.
I am getting ready to get a new BCD, but I think I will skip the BP/W setup. One of these days, I would love to try one out just to see what all the fuss is about. But I will have to try before I buy. My mind says you guys have to be right, with all of your experience...but my eyes say it looks like a torture device.
Here's my take on it. I only notice the plate if I have a fair distance to walk to the water. Even then I only barely notice it with any sort of exposure protection. In a tshirt and shorts (which I will never dive in) it's far more noticeable while walking around. In the water, it's completely transparent (feeling) to me other than the fact that my tank doesn't move in the slightest.