Hi guys, im planning to upgrade my router from the stock unifi router they gave me few years back. Im comparing RT-N14UHP and RT-N18U. I stayed in a 2-stry house 22x80 my router will be placed at ground floor. Bascially all my 4pcs will be using it and 5smart phone. ermm casual gaming and also downloading from piratebay quite frequently.

n14 - 359
n18 - 479

Please advise thank you.