Much the same here, I have 2 systems running, one for lawn and one for gardens at second house, this runs on solar and POE for the Pi. Both work fine though I've lost the temperature readings. When they fail I'll look at either SP or design my own system using Shelly relays with an add on hat for temperature/ humidity and rain sensor readings. These have a really good app with remote access and scheduling.

That said, my lawn irrigation runs perfectly.

Cheers