can't speak from an owner's perspective ...
... only from having handled a few pieces in the store. ultimately i think neither the BB nor an APROO would keep me interested designwise in the long term, but then there's nothing wrong in buying a little fluff piece to flip somewhere down the road ... i've been guilty of this crime for my last few watch purchases :o) LOL
anyways, a few thoughts from the top of my head:
1. i don't think the design is an bovious rip-off of the offshore. yes, there are similarities, but the design cues that trigger the comparison are sooooo generic. any sports chrono with a rubber band and screws in the bezel ultimately looks somewhat like an APROO. at least the BB actually has screws in the bezel ;o)
2. valjoux 7750. hmmm. ok. i'm actually an admirer of the valjoux chrono movement for it's robustness and accuracy, but let's be honest, a 7750 with a new rotor does not warrant a display back ;o) plus, i am one of those people for whom the constant scratching and rotor wobble is distracting and annoying.
3. i have a noted dislike for rubber straps of any kind and was disappointed that i could not check out a bracelet model. from pictures, i find the bracelet to look somewhat cool and blend into the look very smoothly.
4. i really like the use of ceramics on any watch, big fan of that case material here. if i'm not mistaken, hublot work together with kyocera on the ceramic materials, which is certainly a guarantee for innovation and quality in that department. oh, and lookee ... would you know it? a year after the big bang, AP comes out with an offshore that has a ceramic bezel LOL :o)
5. while some people find the constant release of new limited or special editions of the BB in a gazillion different versions distracting, i must say they come out with some pretty cool stuff. like the all-black BB, heehee ... i like it, it takes some balls to creat a watch with minimal legibility.