Thanks to all for the great info you have provided in the forum. I have been researching for a while and was ready to purchase a Rachio 3, when I noticed Costco had just reduced their price. It’s a great deal, if 12 zones will meet your needs. I just ordered one.
Rachio 3 Smart Sprinkler Controller, 12-Zone
Regularly $229.99, now $50 off for $179.99 thru 9/1/19, while supplies last.