(This is a review of a free product received by TP-LINK as part of the review program.)
This dual--band TP-Link network extender is incredibly easy to set up and requires no special knowledge on the part of the user. All I had to do was plug in the extender, press the sync button on my router, press the large round sync button on the front of the extender, and wait for them to connect on the 2.4 GHz band. To connect to the 5Ghz one, I only had to repeat the procedure. After I had both bands connected to the extender, I could move it anywhere in my house within range of the WiFi network in order to amplify the signal in previously weak signal areas of my house. (The WPS set-up requires close proximity to the router, and if you can't get close enough, TP-Link provides a web browser method of connection that's almost as easy.) I plugged mine into an outlet against an interior outer wall so that I could move an outside security camera that requires an extra strong signal farther from the house. It works perfectly.
The extender has three antennae, including one in the middle that can be slid up and down to fit into a tighter location. It also has a gigabit ethernet port to directly connect a device that requires hard--wiring to a router. All you have to do it use the included ethernet cable to connect to the extender's port, and your device becomes wireless and instanty on your home network.
Any extender is going to slow the network connection a tiny bit by virtue of the hand-off; however, even when I'm streaming, I cannot detect any lags. Once my device is connected to the network through the extender, it behaves just as it would anywhere else in the house. The connection to my home network has been so far stable and reliable.
My only complaint is the size of the RE450. Whether I place it on the top or the bottom receptacle of an outlet, it blocks both. In a house full of electronics and lamps, I resent that I've now lost one of the few places I could plug in my vacuum cleaner. Other TP-Link extenders have plug outlets, and other extenders are smaller. I wish TP-Link had gone one way or the other with this one.
For those of us with larger homes, network extenders are essential, especially for streaming or surfing the web in areas far from the router, and this TP-Link version works exactly as it should. You can use it with any brand router (I tested mine with both a TP-Link and a Netgear router). As long as you place it within your router's range -- the lights on the front glow blue when the signal is strong enough -- you will get increased coverage without noticeable lags.