Communication was great. I ordered in December so had to wait over holiday time for delivery. I was informed of payment received, when package will go out and kept up to progress, without having to ask once. Great feedback and follow up.
Intallation was straight forward once you understand what all needs to be in the initial kit (element, thermostat pocket, kwikot flange). I opted to use a seperate compatible thermostat to connect the system to my existing CBI Geyser controller. From cold it heated up in about 2.5 hours and happpily runs through my inverter on solar during the day.