Well, it does the job done at least in my living room.
So far not only I have experiences zero interferences, glitches, drops etc. but these have almost identical sound with my favorite low capacitance Cordial and Sommer cables. Oh, and my ears agree with the null test I performed (because my ears may lie, but frequency diagrams don't).
I can't test the range at home and the same goes for the battery life, since I regularly charge them after finishing playing.
By the way, the router (dual band, 2.4/5Ghz) is sitting bout 4 meters away, no problems so far.
The only issue I found is that the Receiver does not shut down after 30 minutes as advertised even with the Transmitter switched off. In fact after 10-20 minutes a get periodic pops on my speakers. Not a dealbreaker for me since I usually switch off both of them when I am done.,
For 50 euros, it's a steal.