Hi Jimjimbo, I like em and recommend! I use mine to stream mainly from Google play music and use the optical out to feed the DAC on a Marantz SA8005 and it sounds better than it should! Actually I used it with the built in DAC with a vintage Kenwood and it also sounded very good to my ears. Not CD quality but perfectly adequate for casual listening IMHO - it all depends on the quality of the source, etc. There are some settings to be mindful of, there is an option to set for "full fidelity" or something similar - make sure that is on. Very cool device and I am sorry that they quit making them.
Regards,
Scott