I know measurements do not directly get translated into audiophile pleasure. But this little device's SINAD is only 76 per Shenzhen Audio's website. To give you some perspectives, SDAC scores about 90, and for >= $100, you can easily get >= 100 in SINAD. If you do care about audio quality, please stay away from this because you are likely to abandon it down the road.
On the other hand, if you are just a casual listener and care more about functions, this is an excellent device. Bluetooth is really a nice addon.
Please understand your need and this product before joining this drop. Hope this helps.