I just installed my WiiM Mini yesterday, and I’m pleasantly surprised.
Up until yesterday, the primary source for my Topping DX3 Pro+ was my LG G8, which I use as a DAP solely, connected via USB. The app I used for playing my library was JRemote connected via wifi to my JRiver server. It worked well delivering bitperfect PCM to my ears, but I wanted an inexpensive streamer, if for any reason, to get rid of the cable. I found it at Amazon (Canada) for CA$100.
The WiiM was relatively easy to set up, and was connected to my DAC/Amp via optical SPDIF. I fired up the WiiM app, connected it to the JRiver server via DLNA, and verified bitperfect playback by confirming the reported bit depth, sampling rate and compressed bitrate. However, the WiiM app is by no means as polished as are apps like JRemote, UAPP, or Hiby Music. It loads generic DLNA slowly, but it does access the JRiver server much more quickly. It also doesn’t make it very easy to build a playlist.
However, what pleased me most was the ability to fire up the JRemote app, and to be able to point its output to the WiiM as an output device. One problem here I discovered was that it doesn’t play nice with Google apps like Youtube. That is, I was amazed that I could simply switch to Youtube, and it played automatically via the WiiM. However, switching back was problematic—JRemote was able to play the next track but failed loading any subsequent tracks in the prior playlist. I was forced to restart the JRemote app.