Reviewing version 6.0.1 (1) for use with Rheem/Ruud 5th generation hybrid heat pump water heater (WH). This update fixed the graphing problem introduced in v6.
There are two functions in EcoNet that make it very useful. First, it can set schedules for your WH. I use it to turn my WH off for 8 hours every night. You could also use it to overheat your water just before peak electricity rates begin and set a lower temperature during peak time.
Second, you can use EcoNet to disable your WH when you will be gone for a few days and then enable it again remotely when you are on your way home, so you arrive to hot water. This is different from Vacation mode, which doesn't work. See below.
EcoNet also has other functions that are less useful, since they can easily be performed on the WH itself. For example, you can adjust the temperature set point, and you can change among the various heating modes (but not Vacation).
Don't try to put the WH in Vacation mode using EcoNet . It doesn't actually get to Vacation and you will lose control of the WH. You won't be able to do anything until you cycle through the modes once using the physical buttons on the WH panel, then kill and restart EcoNet .
Also, the Usage charts are nonsense. Based on my solar system home monitoring I suspected the WH usage in EcoNet was incorrect, so I connected an external monitor to the circuit. I observed that my WH actually uses about half as much energy as shown in the usage graphs.
Finally, ignore the banner in EcoNet that constantly suggests you put the unit into so-called Energy Saver mode for best efficiency. Instead, start with Heat Pump mode. Don't switch to Energy Saver unless you find that Heat Pump is unable to keep up with your demand. Energy Saver uses old fashion resistance elements to supplement the Heat Pump, and those elements are extremely power hungry, like a standard electric water heater. That may be necessary for heavier usage, but try Heat Pump first.
One star for the scheduler plus one star for the ability to remotely enable/disable the WH, minus one star for all the non-working features and the misinformation.