I can finally reveal the reason I have been standing in the yard staring at my laptop screen over the past few weeks: this review of several mesh WiFi systems for Reviewed.com. These systems spread the reach of your WiFi by sharing it amongst several routers that work together, rather than a single router.
…Nest WiFi has an extra trick up its sleeve: it works as a Google Voice Assistant speaker. That means you can ask it to do things, such as play tunes from Spotify while you cook, or control smart devices. That could be a pro or a con depending on how you feel about things talking to you: personally, with three meowing cats and a barky dog, I have enough things in my house talking to me without Google joining in.