I just downloaded it a couple of days ago, and I love it. With foobar on my of, and adding the the upnp plug in to the pc, streaming is really good, much better than when using iTunes. This is a a demo version, with a few things still not working, like hi Rez and resample. The full version is in the works, and I am going to get it when it is released. I am really looking forward to hi Rex, maybe even dsd streaming when it is released.
Hi-Res require DAC with 24-bit/96 Khz support and Android 5.0+. Because Android 5.0 allows 32-bit output if I am not terribly wrong.
Resampler. Check settings, it must be set to supported by your smartphone mode. 96 Khz max. Set Resampler to 1 if you want upsample 16-bit/44 Khz or downsample 24-bit files to your max supported 44/48 Khz.
On my old LG G2 KitKat 4.4.2 I can't get sound if set more than 48 Khz, but HTC 10 working fine. I do not recommend upsampling cause it changes music from original one.