First of all their people install everything and you have to pay only for gyeser not for installation. Very easy to handle.
Heating is very fast than any other gyeser. It take 30 seconds to heat water.
Design is very good. Stylish ceramic looks and light weighed.
Anti shock facility is there. No chance of short circuit or get connected with water line. So we can use it very safely.
Once installed after few months you have to clean it. And you can clean it by simply just flowing water.
Anyway very good gyeser. I will recommend you to buy.