A lot of the consumer "mesh" products I find are pretty janky after review or use. Not tried Eero, but I did try Samsung mesh AP's for a bit, and found them mostly inept. I considered the google units, but didn't want them uploading everything I do back to google.
The term "mesh" tends to imply remote units are NOT wired, and I need both ideally. Dealing with a number of wired AP's usually requires some level of "controller" to orchestrate them, but consumer stuff just doesn't seem to get how this "should" work...
I got the Samsungs a few years ago for the "SmartThings" hub with zwave integrated, but their wireless was terrible, and only the root AP did zwave, which I thought would be more distributed across my house. Apparently whoever developed samsung's wireless had no idea how wireless works, and would put my 2.4ghz network running most often on channel 5, all 4 of them, which if you know anything about wireless, you just don't do that. You always use channel 1, 6, or 11, really only channels you should ever use in 2.4ghz. Not sure how common this is among "consumer" products. I crap-canned these after about a year as wireless was terrible at 2.4ghz and even 5ghz was pretty wack as they seemed to think using the same channel was a great idea. Hopefully that person at samsung got fired.
Prior to that, I ran a number of wired Cisco AP's (4-5) around my house using a Cisco wireless controller appliance for them, which I installed a lot of across enterprises. Any enterprise solution you can configure to use the right channels, and introduce some channel avoidance between them for proper wireless channel distribution. In the 2.4ghz range, with only 3 usable channels (all of which are used by all your neighbors), you're mostly screwed, but at least at 5ghz should be ok if they adjust/avoid used channels, and you get some features like band steering to "influence" devices to move from 2.4 to 5ghz if they behave right. Consumer stuff just doesn't seem to do these features sadly, but good thing you can usually buy old enterprise kit cheap on ebay.
I now run a single Arista enterprise AP that does a well enough job of covering my house for my purposes. I also have some Fortinet AP's wired in with my Fortigate firewall as a controller I test with that work both wired and wireless, but use a different SSID for those. I mostly use the Arista for my primary SSID as it's an 802.1ax AP, but the Fortinets work in full mesh (non-wired) using 5ghz for backhaul or as individually wired ap's orchestrated via my Fortigate ala my prior Cisco's, and Arista via the "cloud".
I have heard good things about Ubiquiti, but no experience thus far. I almost bought into some, but figured I'd screw with the Fortinet and Arista kit as I work with both lots, and found it best staying with enterprise kit I can granularly control understanding how wireless "should" work. I'd be curious to know how well Ubiuquiti deals with dynamic channel selection, band-steering, and other "enterprise" features consumer crap sorely misses on.
-mb