I love this new water softener, it was easy to install and provides great soft water to the entire household.  Only reason not giving it a 5 star is due to a manufacturing quality issue on the back side of the tub.  At the seam, it cracked and started leaking brine, which I read is a common issue on the Reviews.  So GE, please take note and fix your quality issue.
Overall, this is the smallest overall unit I could find and it fits in a very small garage side area.  Also, the Wifi App is great, providing water usage stats, days till refill salt and excellent water shutoff capability.  Only issue, couldn't setup unit with iPhone 6s, required iPhone 7 to work.