Lately, stock modem/router + mesh wifi + uBlock Origin does the basics well enough.
What interests you in FreshTomato specifically?
If Netgear isn't supporting your router well, there's not much to lose in trying different firmware before replacing the hardware. Might be handy to have any kind of backup router around in case things get temporarily borked. In some cases (like power grid failure), I temp used my phone's hotspot with a laptop.