They seem to do the job - integration with solar, different modes for toggling between grid and solar and different day/night tariffs, load balancing within household system, robust build suitable for outdoor use, tethered or untethered, etc etc. They seem to have led the way in the development of smart home chargers and many of the above mentioned features are becoming the norm in other brands entering the market.
Speaking of solar/charger integration, there is a new product on the market here that combines a pv inverter and ev charger which might be good for new solar installs or new builds - good to be ev-ready!