When I first started diving, I bought a SP Knighthawk. Used it 5+ years with no problems and loved the BCD. My wife (she had the Ladyhawk) had her bladder punctured while traveling in Australia and SP took care of it and sent her a brand new BCD. That's great customer service!
My only complaint is that I'm not a fan of the Air2 (or any inflator/air source combo). I have never had to use my Air2, but my wife and another friend both had an OOA situation and had to share air. It did the job, but was not very comfortable. Although I use a BP/W now I still have my Knighthawk. I am planning on swapping out the Air2 for a regualr inflator and will dive it once in awhile.
Good luck.
My only complaint is that I'm not a fan of the Air2 (or any inflator/air source combo). I have never had to use my Air2, but my wife and another friend both had an OOA situation and had to share air. It did the job, but was not very comfortable. Although I use a BP/W now I still have my Knighthawk. I am planning on swapping out the Air2 for a regualr inflator and will dive it once in awhile.
Good luck.