I got this unit for a friend who needed a microphone preamp - works OK-ish purely for this purpose , however finding little strange the gain knob has to be almost on maximum with all microphones I have tested, knowing they work ok on other mixers in more normal range of gain.
I was testing the bluetooth streaming function and noticed quite a lot of beeping and squeeking when the bluetooth button is enabled. It gets lost in during mid/loud volume playback, but quite annoying during more silent music or in between songs. I experienced some sound interruptions when moving the phone - for example just when tilting it in my hands. I found it working when I placed the phone up to around 5m away from the mixer, not moving it and having absolutely no obstacle between the phone and the mixer.
There is no guidance in the manual as to how to run the unit in a DAW software nor specific driver for download for this particluar device. I tried the ASIO4ALL, but I gave up after several attempts to make it working in Reaper or Cubasis without success. I am not saying it is not possible to run, but found it rather frustrating - the device sometime appeared in the DAW settings, but not sending the audio to the DAW. I normally use Yamaha MG mixers as audio interface and for me these work seamlessly without hesitation usingthe official Yamaha Asio drivers in several DAWs.
If I was about to use the mixer as an audio interface or bluetooth audio streaming, I would return it and tried something else.