I "think" that you cannot go wrong with this router.
I have it for a long time now, and, this is the best router i ever owned.
This was upgrade from RT-N16 (which was extremely good router for my needs as well, but, my parents needed a router for their place at the time, so, i gave them my 'old' one, and got me this one - well spent money).
Wi-Fi is working perfectly, good signals, etc.
Maybe you can even get used one on kijiji\ebay, check out