I just installed a similar one, a Zyxel WRE6505 AC 750 range extender. It was a freebe from a Zyxel rep I know. The directions are terrible, but after ignoring them and setting it up, the unit works very well. I think they're about $45.99 on Amazon.
While the one you referenced will help you reception, but I'd go to a little bit "bigger" one as far as capacity, not size. This one is rated at 350Mbps. The Zyxel and others will go higher - I'm seeing 433.3Mbps on mine at the moment.
Also the newer extenders will handle the newer AC WiFi standard. This one only handles a/b/g/n, whereas the newer ones handle a/b/g/n/ac networks. The AC transmits through walls and other blockage better. If you get a new computer, it will have the AC standard in it.
At our house the WiFi router sits under the DWs desk on the other end of the house (of course) and my computer is in the basement. The signal has to go through a couple wooden lateral filing cabinets, a book case, a couple of closets, a china cabinet, a heavy wood floor, several walls and a lot of floor joists.
Any extender will help, but I'd go a few bucks more for faster speeds and the newer AC standard.
Bill
Nodwell RN110 out moose hunting. 4-53 Detroit, Clark 5 spd, 40" wide tracks, 10:00x20 tires, 16,000# capacity, 22,000# weight. You know the mud is getting deep when it's coming in the doors.
