I bought an Eero WiFi 6E two pack this time last year and had nothing but horrible problems with it and returned it. I spent many hours with support, they rolled back my software, it didn’t matter. Was barely faster than WiFi 6 on my old iPhone 14 Pro anyway.
They laid 1Gbps fiber in my neighborhood a couple years ago. I can tell zero difference in normal web use from the 500Mbps I had before on cable for download speed. I can tell a much faster upload speed. This is on Ethernet. WiFi 6 usually gets me around saturation for 500Mbps. The only thing it’s good for is when I’m connecting directly to Amazon S3 and our RackSpace servers at work. Then I get 950Mbps uploads and downloads, which is great for web development, archiving sites, etc. But for consumer stuff? Not really. My Dropbox doesn’t feel much faster. Xbox games seem to capped around 550Mbps download.
You know what made the biggest difference? Wired backhaul. I bought a MoCA pair, 2.5Gbps (for future proofing), and connected my upstairs and downstairs WiFi 6 routers. That fixed all of my problems and freed up another antenna and CPU processing for all of my devices. It has been nearly perfect since then.
So no, there is no practical reason to upgrade for that alone unless you’re needing to push a lot of data up and down directly from servers and time is money. And even so, with the Eero it isn’t going to help you much, in my experience.