Conclusion: Bought these when I'd lost all hope of restoring networking capabilities on my ancient Samsung laptop (think the wireless card's finally died in it), and they work perfectly out the box. Plugged them both into the same wall socket and pressed the link-up button to 'register' them, situated both adapters where I needed them to be, plugged in the ethernet cables and away it went.
Conclusion: I bought these with the fact they may not work in mind but took the risk anyway, how I need not have worried they are superb, I have an old house that the wiring is 20 years old and they work 100%, I now have my PC working as a HTPC from two rooms away, so that's Â£33 vs Â£250 to build another machine, Now lets look at the performance aspect, these are rated up to 200Mbps, the best I've seen is 170Mbps and an average seems around 110 - 160, when I first set up I had both...
Conclusion: I was really pleased with these. We live in an old house with thick walls so wifi is no good and ripping up floorboards to take ethernet cables not much fun either. This works brilliantly. Living in the country we only get a maximum of 10mbps anyway, and the TP-link doesn't seem to affect this performance at all. And yes, you just plug it in and switch it on.
Summary: this product works and it works great no issue at all plug it in press the button and connects always remember to pair them up and stick with the same brand as you can get issues if you don't very well made good quality from tp link money well spent
Summary: This adapter is excellent! I mainly work from my office, but this adapter now lets me work from my laptop in another room with a much better stronger wifi signal. Surprised I didn't get one sooner.