My home wifi has been aggravating my spouse over the last few months because she cannot reliably facetime or use high speed for multimedia stuff.

I was wondering if I could get a plug in repeater like https://www.amazon.com/TP-Link-AC750...ct_top?ie=UTF8 NETGEAR N300 Wi-Fi Range Extender, Essentials Edition (EX2700) but the reviews are suprisingly poor... and it seems to be that way for all the plug in repeaters that I saw.

My current router is a TP-Link N750 Wireless Wi-Fi Dual Band Router (TL-WDR4300) and while it's not that old, I also thought that could be a possible solution. I dont really know what to do.

I also heard that you can take an old router and then turn that into a repeater... so another option would be buy a new, better router and turn my current WDR4300 TP LINK router into a repeater (if it is capable, I dont know that either).

So, really, what do the experts in WiFi think my best option is for increasing the Wifi in our house?

Thank you.