I have the Oppo BP83, I was in the second group that got them, so I have had mine a few months, with no firmware issues I might add. It is a STELLAR player, in all respects.
Is it an Esoteric or Cary 306 Professional?? Uh, no. But it is a great universal player. I am really reaching here since I really don't listen to disc's much, almost all vinyl now and some digital through a DAC, but I think it sounds, on SACD and DVD-Audio about as good as my Denon 5910ci did. Redbook CD is not great through analog, but as a transport to a DAC it's very nice, very good in fact.
I am not a long term believer in BluRay and really got this as a hedge for my SACD's/DVD-A and DVD's in the future, and I think it's hard to beat. In about 5 yrs when no more discs are produced, and it's all digital (and vinyl bizzar-ly enough) you will love having this thing to play anything that comes your way.