Currently I am using the fixed daily and modifying the advanced settings to get the watering times in the ball park of what I think I need. I have considered the fixed schedule many times but I feel like I am going to figure this thing out one of these days.
As for giving feedback to a system I would have no problem providing this feedback on a weekly basis for several months. I have been trying to dial in my sprinkler settings for over a year and have yet to master it so what harm would a few weeks do. Seems like after a few weeks\months "Learning Period" I should be able to go in and provide manual feedback if needed. Based on just the info in the "Zone Details" and the weather data the timer should be able to figure out all the advanced info to keep my lawn green from spring to fall.
To simplify it one step further I would even be willing to buy a Bluetooth soil probe that can sync with Rachio so simply going around my yard choosing the zone and sticking it in the soil and the system will adjust automatically.