Now that Rachio 3e is being upgraded to Weather Intelligence + I am glad I bought the 3e. It has done the job for me and saved many gallons of water. The nearest decent PWS station is about 4 miles from me and there are times when the rainfall is local enough that it doesn’t reflect what rain we actually received but it works well enough.
When I can use WU stations I will have several within a mile from which to choose.