I've also seen mixed results with Eero. Google WiFi isn't much better. I've also let you know my feelings for Netgear.
According to
Wirecutter, they picked Asus as the best Mesh system and best upgrade option mesh.
Asus generally builds robust devices, and their software support is relatively long. I've tried to use older Asus stand-alone WiFi Routers with WiFi range extension mode, and it was beyond hopeless. I genuinely hope they have improved on their mesh product range since then.
I use Ubiquiti, and previously I'd shout out loudly how awesome it is (features/price), BUT it's not without shortcomings. Some of the software updates made it work worse. IA auto-configuration works kind of, soft-of.
In my experience, if Eero is on one end of the scale in terms of ease/complexity to install & configure and Cisco enterprise WiFi is on the opposite side, then Ubiquiti UniFi is somewhere in-between. The catch here is you also want/need IP Security cameras with an on-prem recorder, then getting an UniFi Dream machine Pro is making more sense. This single device will handle the firewall/router/WiFi controller and NVR duties.
All-in-one, enterprise-grade UniFi OS Console and security gateway designed to host the full UniFi application suite. Connect the Dream Machine Pro with a USP RPS to create an uninterruptible network. Features: Pre-installed UniFi Network application LAN ports: (8) GbE RJ45, (1) 10G SFP+ WAN...
store.ui.com
There are also Plume mesh devices, which are supposed to be the smartest around, but they are subscription-based and $8/month just for Wifi and very basic network security seems too steep for me.