I have an AO Smith geyser at my home for more than 3 years and I am satisfied with purchase.
Ease of Use:
Once this geyser was fitted at the bathroom by AO Smith technician, all I have to worry is to switch is on during winter season.
The geyser quickly warms up the water even after 3 years of use, it does have heat and pressure sensors inside to auto adjust once desired and safe temperature is reached.
There are three temperature settings Low, medium and high for desired water temperature.
There is an option to empty geyser when not in use for long time(during summer days) and its simple process.
Durability:
The outer part of this geyser is built nicely, and all the additional fittings are of good quality.
However, after use of 2 years I had to replace the pipe which attaches to the Hot outlet as it was leaking.
It was simple to replace and my husband did it himself.
Style and Design:
In addition to the simple features, this geyser looks very attractive and does not consume lot of space.
Do look at the photos of a fitted geyser at my home.
Service & Support:
I have not had a chance to call the service center since it is operating fine even after 3 years of usage.