So i decided to buy one of these because the son sits hard wired down one end of the house while the rest of us may as well be on the moon as far as Wi Fi coverage is concerned in the house.
Let me tell you it is impressive as it gets, from receiving about 1 bar on anything at our end, we have gone to not just 5 bar signal but speed as well.
I wanted it not for the audio extender more for the wi fi and I can say without doubt it is $75 well spent.
One catch, the quick set up instruction is not as fluid as it needs to be and I ended up going here and installing via the Android app (QRS Mobile), and that was way easier.
For those that may want it for the audio it's a neat gadget as well, may certainly also have a place for those that update HT devices, etc via wi fi, certainly worth a look..........