Bluray players work as well as the device decoding the digital information for audio and video....your avr or tv. The player features & connectivity that something like an Oppo have may be useful, but if you are using hdmi connections to other gear pretty much any player will be just fine. I prefer Sony personally (use a PS3 in my main setup, S5100s in two others).
Disclaimer: I use my bluray players primarily for bluray discs, some streaming but no SACD yet (PS3 can't handle, the others can).