Been using it for about 16 years on TP Link, netgear, and now GLInet routers - its great.
The only one I ever reflashed back to stock was the netgear and that was mostly a temporary experiment.
I love having Tailscale running on it so I can access my LAN from anywhere and use it as an exit node.
Edit: I probably started with DDWRT on a Linksys… Forget if it was DD or Open WRT on the TP link.
Someone touching my perfectly clean screen and leaving a fingerprint deeply angers me in a way that almost nothing else does. I don’t know why but it’s infuriating.