I live in an old house with stone walls about 2 feet (60cm) thick. With the ADSL router located in an upstairs office the only reliable WiFi connection was in the room immediately below it.This TP Link Range Extender,located downstairs, has extended the range of my WiFi coverage all over the ground floor and even out into the conservatory where there was no detectable signal before.Setting up the device was very simple, taking just a few minutes to set up the connection to my TalkTalk supplied Huawei EchoLife HG532 ADSL Router.I am impatient and intolerant of technology that doesn't work first time, but by using the push button set up option and the WPS button on the TalkTalk router set up was completely painless. You do the initial set up with the Range Extender right next to your ADSL router, then move it to it's prefered working position. It took a few minutes to find the best spot, with a convenient mains socket nearby, that gave good coverage throughout the house. Once this spot was found the connection proved to be fast and reliable.
There is a very useful piece of software called inSIDDer, available as freeware, that I downloaded on to a laptop to use as an indicator of signal quality around the house. This program displays all the wireless networks receivable at your location and their relative signal quality. I would recommend using this during the search for the ideal spot to place the Range Extender, it takes all of the guess work out of it. It is also a good survey tool if you haven't decided whether you are going to buy a Range Extender yet. All in all a highly recommended product.