I use FLAC through a Logitech Duet going to a Cambridge Audio DACMagic, rather than the Oppo for music.
I don't do DVDA or SACD, though it's nice to know it's there is the format makes a return. For redbook the Oppo is darn good, but to my ears my DACMagic has it beat. Others however may have a differing opinion.
If the Oppo had a digital in and could take FLAC, I probably would not have bought the DACMagic. It would be great if the Oppo SE could do this.