Just installed my Iro, App looks great so far. I've run into one bug so far with manual zone watering. When I select one zone, set the time to 1 min for water zones 2-8 default back to 10 min. Zone 1 is the only zone that correctly watered at 1 min. This was selecting zones one at a time for testing duration. Not multiple times with one click.
I'll keep looking for anything else. Android app.