I've had a rachio for 3 years. I liked it so much after the first year I upgraded from a Gen 1 to Gen 2 and gave my dad the Gen 1. That first year I recommended Rachio to many people. I gave it a 5 star review on Amazon.
Then Rachio took away the percentage adjustment feature and it has been a hassle ever since. We have been having an extra hot summer and my lawn has been dry. Two weeks ago I adjusted each zone by +15%, but since rachio isn't "smart" enough to do that I had to calculate the 15% for each zone individually and then adjust every zone individually. Today, my entire lawn is dry again and I need to go through the whole process again. This sucks. I'm about ready to give up on rachio because of this one feature (or lack of feature). Very frustrating.