I too had a successful install. Cutting in the flow meter was a breeze and the tutorials with the links to the correct fittings made the process just that much easier.
I did have a problem reading flow and calibrating the zones after the initial pairing but Emil pushed a firmware update to my controller and all of the zones calibrated like a charm. I will note that I had to run calibration twice as the fill time of 1min seemed to mess with the calibration process. My zones only take 15 seconds to fill, maybe 30 seconds to stabilize but 1 minute fill time was not long enough.
An added bonus is the new firmware fixed the bright blue LED bar by adding a 1-2 LED cadence. Much better!!!