I also want to voice support for broken pipe detection. In fact, it's the only reason I've upgraded to the Gen2. I have a lot of drip irrigation zones, so they tend to run for longer periods than a conventional lawn grass zone. So a broken pipe can waste huge amounts of water and be relatively 'hidden'. About 2 years ago I had a $500 bill one month due to a broken pipe. To be most effective, we need the ability to set a 'high flow limit' per zone combined with an automatic zone disable and alert notification. Conversely, a 'low flow limit' notification is also useful to detect a failed solenoid, etc., before my shrubs and trees start turning brown.
I have owned a system by a Rachio competitor that incorporates these features. I don't know if it's considered appropriate to name the specific competitor's controller in this forum, but I will be happy to give details if that's acceptable. And while I like the extra safety provided by this competitor's flow monitoring, in the end, the other basic features of the competitor's controller were unreliable. And remote communication was terrible. So based on my experience with a Rachio Gen1 for my front yard, I've replaced this competitor's system in my back yard. So I'm very anxious to see some broken pipe detection in Rachio. That that will seal the deal for me. I definitely like Rachio's interfaces MUCH better than this competitor's system that I have also been using for the last 2 years.