BTR5 is a great sounding device, I used one daily for a couple of years. I used LDAC with my phone, sounds very similar to using the usb connection, I say similar because it isn't actually the same but I found it equally enjoyable. Mine is still in good condition with little loss of battery runtime. If you have an interest in EQ or think you'll enjoy tinkering with an extensive phone app, the Qudelix would be better for that, other than it's app its very similar to the other bluetooth DAC/amps.