I just got a Netgear 3500rp. Where this device will help you the most is the following. Say your router is inside on the first floor and you want t o go outside and use your computer. Though Wifi speed is affected towards the less side, a strong steady signal that you would not have without the extender makes downloads easier for sure. Inside it really only makes a really big difference, if your router is say more than 35 feet or so from where you are working. These devices vary in price from say $39.99 to $99.00.