I tried out a Hydros Pro yesterday for about 10 minutes before I tried out a BP/W for the first time as well. Prior I had only ever used jacket style as I'm still very new and only done OW/AOW dives as well as 2 more after that.
The Hydros Pro felt nice on. The one I used had the weight pockets attached. They had another one there without them, so I could see what it looked like, and they add a lot of bulk. The grip of the BCD is nice. The rubbery texture just sticks to you, but in a good way.
I enjoyed my time with it but I did not feel like it was anything special. I was more curious since it was a back inflated BCD which I had never used before. I put some extra weight into the BCD so I could fill it with some air and become buoyant to see how it felt underwater. I noticed slightly how it didn't try to pull me vertical like a jacket style did. At the surface, while it does try to "push you forward" it is nothing hard to overcome, and you an just turn around and float on your back if you want. It did feel like a slightly more minimal jacket style BCD, as far as how it feels wearing it. It isn't as bulky, but I was surprised how "big" and heavy it was.
Afterwards I tried out a BP/W for the first time, and within a minute or two, I was sold on it and that is going to be what I'm going to purchase. The minimal feel of it was incredible.